Add OpenSSF Security Scorecard action (#736)

### Description
Runs the OpenSSF Security Scorecard on the Quokka repository. For
details, see: https://scorecard.dev/#what-is-openssf-scorecard.

### Related issues
N/A

### Checklist
_Before this pull request can be reviewed, all of these tasks should be
completed. Denote completed tasks with an `x` inside the square brackets
`[ ]` in the Markdown source below:_
- [x] I have added a description (see above).
- [ ] I have added a link to any related issues see (see above).
- [x] I have read the [Contributing
Guide](https://github.com/quokka-astro/quokka/blob/development/CONTRIBUTING.md).
- [ ] I have added tests for any new physics that this PR adds to the
code.
- [ ] I have tested this PR on my local computer and all tests pass.
- [ ] I have manually triggered the GPU tests with the magic comment
`/azp run`.
- [x] I have requested a reviewer for this PR.

.github/workflows/scorecard.yml

@@ -0,0 +1,73 @@
+# This workflow uses actions that are not certified by GitHub. They are provided
+# by a third-party and are governed by separate terms of service, privacy
+# policy, and support documentation.
+
+name: Scorecard supply-chain security
+on:
+  # For Branch-Protection check. Only the default branch is supported. See
+  # https://github.com/ossf/scorecard/blob/main/docs/checks.md#branch-protection
+  branch_protection_rule:
+  # To guarantee Maintained check is occasionally updated. See
+  # https://github.com/ossf/scorecard/blob/main/docs/checks.md#maintained
+  schedule:
+    - cron: '45 19 * * 4'
+  push:
+    branches: [ "development" ]
+
+# Declare default permissions as read only.
+permissions: read-all
+
+jobs:
+  analysis:
+    name: Scorecard analysis
+    runs-on: ubuntu-latest
+    permissions:
+      # Needed to upload the results to code-scanning dashboard.
+      security-events: write
+      # Needed to publish results and get a badge (see publish_results below).
+      id-token: write
+      # Uncomment the permissions below if installing in a private repository.
+      # contents: read
+      # actions: read
+
+    steps:
+      - name: "Checkout code"
+        uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
+        with:
+          persist-credentials: false
+
+      - name: "Run analysis"
+        uses: ossf/scorecard-action@0864cf19026789058feabb7e87baa5f140aac736 # v2.3.1
+        with:
+          results_file: results.sarif
+          results_format: sarif
+          # (Optional) "write" PAT token. Uncomment the `repo_token` line below if:
+          # - you want to enable the Branch-Protection check on a *public* repository, or
+          # - you are installing Scorecard on a *private* repository
+          # To create the PAT, follow the steps in https://github.com/ossf/scorecard-action?tab=readme-ov-file#authentication-with-fine-grained-pat-optional.
+          # repo_token: ${{ secrets.SCORECARD_TOKEN }}
+
+          # Public repositories:
+          #   - Publish results to OpenSSF REST API for easy access by consumers
+          #   - Allows the repository to include the Scorecard badge.
+          #   - See https://github.com/ossf/scorecard-action#publishing-results.
+          # For private repositories:
+          #   - `publish_results` will always be set to `false`, regardless
+          #     of the value entered here.
+          publish_results: true
+
+      # Upload the results as artifacts (optional). Commenting out will disable uploads of run results in SARIF
+      # format to the repository Actions tab.
+      - name: "Upload artifact"
+        uses: actions/upload-artifact@97a0fba1372883ab732affbe8f94b823f91727db # v3.pre.node20
+        with:
+          name: SARIF file
+          path: results.sarif
+          retention-days: 5
+
+      # Upload the results to GitHub's code scanning dashboard (optional).
+      # Commenting out will disable upload of results to your repo's Code Scanning dashboard
+      - name: "Upload to code-scanning"
+        uses: github/codeql-action/upload-sarif@v3
+        with:
+          sarif_file: results.sarif

README.md

@@ -1,6 +1,8 @@
 [![Quality Gate Status](https://sonarcloud.io/api/project_badges/measure?project=BenWibking_TwoMomentRad&metric=alert_status&token=5049c56ffe08dcc83afd5ca4c8e0d951a2836652)](https://sonarcloud.io/dashboard?id=BenWibking_TwoMomentRad)
 [![Bugs](https://sonarcloud.io/api/project_badges/measure?project=BenWibking_TwoMomentRad&metric=bugs&token=5049c56ffe08dcc83afd5ca4c8e0d951a2836652)](https://sonarcloud.io/dashboard?id=BenWibking_TwoMomentRad)
 [![Lines of Code](https://sonarcloud.io/api/project_badges/measure?project=BenWibking_TwoMomentRad&metric=ncloc&token=5049c56ffe08dcc83afd5ca4c8e0d951a2836652)](https://sonarcloud.io/dashboard?id=BenWibking_TwoMomentRad)
+[![OpenSSF Best Practices](https://www.bestpractices.dev/projects/9489/badge)](https://www.bestpractices.dev/projects/9489)
+[![OpenSSF Scorecard](https://api.scorecard.dev/projects/github.com/quokka-astro/quokka/badge)](https://scorecard.dev/viewer/?uri=github.com/quokka-astro/quokka)
 [![AMReX](https://amrex-codes.github.io/badges/powered%20by-AMReX-red.svg)](https://amrex-codes.github.io)
 [![yt-project](https://img.shields.io/static/v1?label="works%20with"&message="yt"&color="blueviolet")](https://yt-project.org)