fix: updated to actions/checkout@v6 and avoid running following jobs if no new code added

.github/workflows/build.yml

@@ -8,7 +8,7 @@ jobs:
     name: Build
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - uses: actions/setup-java@v4
         with:

.github/workflows/coverage.yml

@@ -11,7 +11,7 @@ jobs:
     name: Coverage
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - uses: actions/setup-java@v4
         with:

.github/workflows/instrumented-tests.yml

@@ -8,7 +8,7 @@ jobs:
     name: Instrumented Tests
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - uses: actions/setup-java@v4
         with:

.github/workflows/pr-checks.yml

@@ -11,6 +11,20 @@ concurrency:
   cancel-in-progress: true
 
 jobs:
+  detect-changes:
+    runs-on: ubuntu-latest
+    outputs:
+      source: ${{ steps.filter.outputs.source }}
+    steps:
+      - uses: actions/checkout@v6
+      - uses: dorny/paths-filter@v3
+        id: filter
+        with:
+          filters: |
+            source:
+              - 'composeApp/src/**/*.kt'
+              - 'composeApp/src/**/*.java'
+
   build:
     uses: ./.github/workflows/build.yml
 
@@ -20,11 +34,13 @@ jobs:
       contents: write
 
   unit-tests:
-    needs: build
+    needs: [ detect-changes, build ]
+    if: needs.detect-changes.outputs.source == 'true'
     uses: ./.github/workflows/unit-tests.yml
 
   instrumented-tests:
-    needs: build
+    needs: [ detect-changes, build ]
+    if: needs.detect-changes.outputs.source == 'true'
     uses: ./.github/workflows/instrumented-tests.yml
 
   coverage:

.github/workflows/publish-android.yml

@@ -11,7 +11,7 @@ jobs:
     name: Generate Android Release
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Download Android keystore
         id: android_keystore

.github/workflows/spotless.yml

@@ -8,7 +8,7 @@ jobs:
     name: Spotless
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           ref: ${{ github.head_ref }}
           fetch-depth: 0

.github/workflows/unit-tests.yml

@@ -8,7 +8,7 @@ jobs:
     name: Unit Tests
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - uses: actions/setup-java@v4
         with: