Bump actions/checkout from 2 to 3

Bumps [actions/checkout](https://github.com/actions/checkout) from 2 to 3.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v2...v3)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/build.yml

@@ -14,7 +14,7 @@ jobs:
         - "--enable-debug --enable-cuckoo --enable-magic --enable-pb-tests --enable-address-sanitizer --enable-undefined-behaviour-sanitizer"
         - "--enable-debug --enable-profiling --enable-cuckoo --enable-magic --enable-pb-tests --enable-address-sanitizer --enable-undefined-behaviour-sanitizer"
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - name: Install dependencies
         run: |
           sudo apt-get update
@@ -53,7 +53,7 @@ jobs:
         - "--host=x86_64-w64-mingw32"
         - "--host=i686-w64-mingw32"
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - name: Install dependencies
         run: |
           sudo apt-get update
@@ -73,7 +73,7 @@ jobs:
   macosx-build:
     runs-on: macos-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - name: Install dependencies
         run: |
           brew install \
@@ -119,7 +119,7 @@ jobs:
           key: ${{ runner.os }}-${{ env.cache-name }}-${{ github.ref }}
           restore-keys: |
             ${{ runner.os }}-${{ env.cache-name }}-development
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - name: Build
         run: bazel build @jansson//... //tests/...
       - name: Run tests

.github/workflows/coverity.yml

@@ -8,7 +8,7 @@ jobs:
   coverity:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
     - name: Install dependencies
       run: |
           sudo apt-get update