Auto merge of #13459 - weihanglo:ci-tool, r=epage

chore(ci): bump CI tools

### What does this PR try to resolve?

This bumps cargo-semver-checks to 0.29.0 and mdbook to 0.4.37. Both are significant releases but supposed not to affect anything in rust-lang/cargo.

### How should we test and review this PR?

Wait for CI green.

### Additional information
<!-- homu-ignore:end -->

Author: bors

.github/workflows/contrib.yml

@@ -23,7 +23,7 @@ jobs:
     - name: Install mdbook
       run: |
         mkdir mdbook
-        curl -Lf https://github.com/rust-lang/mdBook/releases/download/v0.4.27/mdbook-v0.4.27-x86_64-unknown-linux-gnu.tar.gz | tar -xz --directory=./mdbook
+        curl -Lf https://github.com/rust-lang/mdBook/releases/download/v0.4.37/mdbook-v0.4.37-x86_64-unknown-linux-gnu.tar.gz | tar -xz --directory=./mdbook
         echo `pwd`/mdbook >> $GITHUB_PATH
     - name: Deploy docs
       run: |

.github/workflows/main.yml

@@ -104,7 +104,7 @@ jobs:
       - name: Install cargo-semver-checks
         run: |
           mkdir installed-bins
-          curl -Lf https://github.com/obi1kenobi/cargo-semver-checks/releases/download/v0.24.0/cargo-semver-checks-x86_64-unknown-linux-gnu.tar.gz \
+          curl -Lf https://github.com/obi1kenobi/cargo-semver-checks/releases/download/v0.29.0/cargo-semver-checks-x86_64-unknown-linux-gnu.tar.gz \
             | tar -xz --directory=./installed-bins
           echo `pwd`/installed-bins >> $GITHUB_PATH
       - run: ci/validate-version-bump.sh
@@ -248,7 +248,7 @@ jobs:
     - name: Install mdbook
       run: |
         mkdir mdbook
-        curl -Lf https://github.com/rust-lang/mdBook/releases/download/v0.4.31/mdbook-v0.4.31-x86_64-unknown-linux-gnu.tar.gz | tar -xz --directory=./mdbook
+        curl -Lf https://github.com/rust-lang/mdBook/releases/download/v0.4.37/mdbook-v0.4.37-x86_64-unknown-linux-gnu.tar.gz | tar -xz --directory=./mdbook
         echo `pwd`/mdbook >> $GITHUB_PATH
     - run: cd src/doc && mdbook build --dest-dir ../../target/doc
     - name: Run linkchecker.sh