[Infra] Migrate firestore.yml to use reusable workflow jobs

.github/workflows/firestore.yml

@@ -83,6 +83,10 @@
               # This workflow
               - '.github/workflows/firestore.yml'
 
+              # Workflows this one depends on.
+              - '.github/workflows/common.yml'
+              - '.github/workflows/common_cocoapods.yml'
+
               # Rebuild on Ruby infrastructure changes.
               - 'Gemfile*'
 
@@ -379,37 +383,17 @@
         export EXPERIMENTAL_MODE=true
         scripts/third_party/travis/retry.sh scripts/build.sh Firestore ${{ matrix.target }} xcodebuild
 
-
-  pod-lib-lint:
+  pod_lib_lint:
     needs: check
-    # Either a scheduled run from public repo, or a pull request with firestore changes.
-    if: |
-      (github.repository == 'Firebase/firebase-ios-sdk' && github.event_name == 'schedule') ||
-      (github.event_name == 'pull_request')
-    runs-on: macos-15
     strategy:
       matrix:
-        podspec: [
-          'FirebaseFirestoreInternal.podspec',
-          'FirebaseFirestore.podspec',
-        ]
-
-    steps:
-    - uses: actions/checkout@v4
-
-    - uses: ruby/setup-ruby@354a1ad156761f5ee2b7b13fa8e09943a5e8d252 # v1
-    - name: Setup Bundler
-      run: ./scripts/setup_bundler.sh
-    - name: Xcode
-      run: sudo xcode-select -s /Applications/Xcode_16.3.app/Contents/Developer
-
-    - name: Pod lib lint
-      # TODO(#9565, b/227461966): Remove --no-analyze when absl is fixed.
-      run: |
-        scripts/third_party/travis/retry.sh scripts/pod_lib_lint.rb ${{ matrix.podspec }} \
-            --platforms=ios \
-            --allow-warnings \
-            --no-analyze
+        product: ['FirebaseFirestoreInternal', 'FirebaseFirestore']
+    uses: ./.github/workflows/common_cocoapods.yml
+    with:
+      product: FirebaseFunctions
+      platforms: iOS
+      allow_warnings: true
+      # --no-analyze # TODO(#9565, b/227461966): Remove --no-analyze when absl is fixed.
 
   # `pod lib lint` takes a long time so only run the other platforms and static frameworks build in the cron.
   pod-lib-lint-cron:
@@ -524,25 +508,13 @@
       run: scripts/third_party/travis/retry.sh ./scripts/build.sh FirebaseFirestore ${{ matrix.target }} spmbuildonly
 
   spm-binary:
-    needs: check
-    # Either a scheduled run from public repo, or a pull request with firestore changes.
-    if: |
-      (github.repository == 'Firebase/firebase-ios-sdk' && github.event_name == 'schedule') ||
-      (github.event_name == 'pull_request' && needs.changes.outputs.changed == 'true')
-    runs-on: macos-15
-    steps:
-    - uses: actions/checkout@v4
-    - uses: mikehardy/buildcache-action@c87cea0ccd718971d6cc39e672c4f26815b6c126
-      with:
-        cache_key: spm-binary
-    - name: Xcode
-      run: sudo xcode-select -s /Applications/Xcode_16.2.app/Contents/Developer
-    - name: Initialize xcodebuild
-      run: scripts/setup_spm_tests.sh
-    - name: iOS Build Test
-      run: scripts/third_party/travis/retry.sh ./scripts/build.sh FirebaseFirestore iOS spmbuildonly
+    uses: ./.github/workflows/common.yml
+    with:
+      target: FirebaseFirestore
+      platforms: iOS
+      buildonly_platforms: iOS
 
   check-firestore-internal-public-headers:
     needs: check
     # Either a scheduled run from public repo, or a pull request with firestore changes.
     if: |