Add temporary Artifactory secret

Eventually we want the secret to be under the pendo-ops email, but for
now I'm just testing if the personal access key works.

.github/workflows/publish.yml

@@ -27,6 +27,10 @@ jobs:
               uses: actions/configure-pages@v4
             - name: Setup Node
               uses: actions/setup-node@v4
+            - name: Prepare npmrc
+              run: envsubst < ci.npmrc > .npmrc
+              env:
+                  ARTIFACTORY_TOKEN: '${{ secrets.ARTIFACTORY_TOKEN }}'
             - name: Install dependencies
               uses: bahmutov/npm-install@v1
             - name: Build project

ci.npmrc

@@ -0,0 +1,3 @@
+@pendo:registry=https://pendo.jfrog.io/artifactory/api/npm/web/
+//pendo.jfrog.io/artifactory/api/npm/web/:_auth=${ARTIFACTORY_TOKEN}
+//pendo.jfrog.io/artifactory/api/npm/web/:always-auth=true