Merge #1745: ci: pin rustls dependency version to build with rust 1.63

3cb5d35 ci: pin `rustls` dependency version to build with rust 1.63 (Wei Chen)

Pull request description:

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  ### Description

  <!-- Describe the purpose of this PR, what's being adding and/or fixed -->
  `rustls` version 0.23.18 raised msrv to 1.71.
  Version 0.23.17 was pinned to CI to continue working.

  ### Notes to the reviewers

  <!-- In this section you can include notes directed to the reviewers, like explaining why some parts
  of the PR were done in a specific way -->

  ### Changelog notice

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  <!-- See https://keepachangelog.com/en/1.0.0/ for examples -->
  * Pinned rustls dependency version to build with rust 1.63.

  ### Checklists

  #### All Submissions:

  * [x] I've signed all my commits
  * [x] I followed the [contribution guidelines](https://github.com/bitcoindevkit/bdk/blob/master/CONTRIBUTING.md)
  * [x] I ran `cargo fmt` and `cargo clippy` before committing

ACKs for top commit:
  evanlinjin:
    ACK 3cb5d35

Tree-SHA512: cd060438fdc55eddf6c3b9fbebf4ba415a9d602a6b433352763d4f351dba3d91ce186cd00844dc5536dfe78ad0d191bb62e8f315c763884d0a57f1da0ce7c55c

.github/workflows/cont_integration.yml

@@ -51,6 +51,7 @@ jobs:
           cargo update -p tokio-util --precise "0.7.11"
           cargo update -p indexmap --precise "2.5.0"
           cargo update -p security-framework-sys --precise "2.11.1"
+          cargo update -p [email protected] --precise "0.23.17"
       - name: Build
         run: cargo build --workspace --exclude 'example_*' ${{ matrix.features }}
       - name: Test

README.md

@@ -78,6 +78,7 @@ cargo update -p tokio --precise "1.38.1"
 cargo update -p tokio-util --precise "0.7.11"
 cargo update -p indexmap --precise "2.5.0"
 cargo update -p security-framework-sys --precise "2.11.1"
+cargo update -p [email protected] --precise "0.23.17"
 ```
 
 ## License