ci: cache SPM packages and add timeout in release-publish build-kits (#719)

ci: cache SPM packages and add timeout in release-publish build-kits job

- Add actions/cache@v4 step to cache DerivedData/SourcePackages per kit,
  keyed on Package.swift hash — avoids cold-fetching large dependencies
  on every release run (e.g. Airship ios-library takes 8+ min cold)
- Add explicit -resolvePackageDependencies step before archiving so
  resolution is separated from compilation and benefits from the cache
- Pass -derivedDataPath DerivedData and -packageCachePath to all
  xcodebuild archive calls for consistency with the resolved packages
- Add timeout-minutes: 30 to prevent hung jobs blocking the pipeline
- Remove committed Package.resolved files (already covered by .gitignore)

Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: nickolas-dimitrakas

.github/workflows/release-publish.yml

@@ -123,6 +123,7 @@ jobs:
     name: Build ${{ matrix.kit.name }}
     needs: load-matrix
     runs-on: macOS-latest
+    timeout-minutes: 30
     env:
       XCODE_VERSION: "26.2"
       # Build xcframeworks against mParticle-Apple-SDK from this checkout (same commit as VERSION).
@@ -141,6 +142,22 @@ jobs:
       - name: Select Xcode
         run: sudo xcode-select -s /Applications/Xcode_${{ env.XCODE_VERSION }}.app
 
+      - name: Cache SPM packages
+        uses: actions/cache@v4
+        with:
+          path: DerivedData/SourcePackages
+          key: spm-${{ runner.os }}-${{ matrix.kit.name }}-${{ hashFiles(format('{0}/Package.swift', matrix.kit.local_path)) }}
+          restore-keys: |
+            spm-${{ runner.os }}-${{ matrix.kit.name }}-
+            spm-${{ runner.os }}-
+
+      - name: Resolve SPM dependencies
+        run: |
+          SCHEME=$(echo '${{ toJson(matrix.kit.schemes) }}' | jq -r '.[0].scheme')
+          PROJECT="$(ls -d ${{ matrix.kit.local_path }}/*.xcodeproj | head -1)"
+          xcodebuild -resolvePackageDependencies -project "$PROJECT" \
+            -scheme "$SCHEME" -derivedDataPath DerivedData
+
       - name: Build kit xcframeworks
         shell: bash
         run: |
@@ -184,9 +201,15 @@ jobs:
               esac
 
               xcodebuild archive -project "$PROJECT" -scheme "$SCHEME" \
-                -destination "$PLATFORM_DEVICE" -archivePath "$ARCHIVE_DEVICE" $BUILD_SETTINGS
+                -destination "$PLATFORM_DEVICE" -archivePath "$ARCHIVE_DEVICE" \
+                -derivedDataPath DerivedData \
+                -packageCachePath DerivedData/SourcePackages \
+                $BUILD_SETTINGS
               xcodebuild archive -project "$PROJECT" -scheme "$SCHEME" \
-                -destination "$PLATFORM_SIM" -archivePath "$ARCHIVE_SIM" $BUILD_SETTINGS
+                -destination "$PLATFORM_SIM" -archivePath "$ARCHIVE_SIM" \
+                -derivedDataPath DerivedData \
+                -packageCachePath DerivedData/SourcePackages \
+                $BUILD_SETTINGS
 
               XCFRAMEWORK_ARGS+=" -archive ${ARCHIVE_DEVICE}.xcarchive -framework ${MODULE}.framework"
               XCFRAMEWORK_ARGS+=" -archive ${ARCHIVE_SIM}.xcarchive -framework ${MODULE}.framework"