Bump actions/upload-artifact from 3 to 4

.github/workflows/compile-examples.yml

@@ -57,8 +57,10 @@ jobs:
         board:
           - fqbn: arduino:mbed_portenta:envie_m7
             platform-name: arduino:mbed_portenta
+            artifact-name-suffix: arduino-mbed_portenta-envie_m7
           - fqbn: arduino:mbed_giga:giga
             platform-name: arduino:mbed_giga
+            artifact-name-suffix: arduino-mbed_giga-giga
 
         include:
           - board:
@@ -97,8 +99,8 @@ jobs:
           sketches-report-path: ${{ env.SKETCHES_REPORTS_PATH }}
 
       - name: Save memory usage change report as artifact
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
-          name: ${{ env.SKETCHES_REPORTS_PATH }}
+          name: sketches-report-${{ matrix.board.artifact-name-suffix }}
           if-no-files-found: error
           path: ${{ env.SKETCHES_REPORTS_PATH }}

.github/workflows/report-size-deltas.yml

@@ -20,5 +20,5 @@ jobs:
       - name: Comment size deltas reports to PRs
         uses: arduino/report-size-deltas@v1
         with:
-          # The name of the workflow artifact created by the "Compile Examples" workflow
-          sketches-reports-source: sketches-reports
+          # Regex matching the names of the workflow artifacts created by the "Compile Examples" workflow
+          sketches-reports-source: ^sketches-report-.+

.github/workflows/sync-labels.yml

@@ -19,7 +19,7 @@ on:
 
 env:
   CONFIGURATIONS_FOLDER: .github/label-configuration-files
-  CONFIGURATIONS_ARTIFACT: label-configuration-files
+  CONFIGURATIONS_ARTIFACT_PREFIX: label-configuration-file-
 
 jobs:
   check:
@@ -70,13 +70,13 @@ jobs:
           file-url: https://raw.githubusercontent.com/arduino/tooling-project-assets/main/workflow-templates/assets/sync-labels/${{ matrix.filename }}
 
       - name: Pass configuration files to next job via workflow artifact
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           path: |
             *.yaml
             *.yml
           if-no-files-found: error
-          name: ${{ env.CONFIGURATIONS_ARTIFACT }}
+          name: ${{ env.CONFIGURATIONS_ARTIFACT_PREFIX }}${{ matrix.filename }}
 
   sync:
     needs: download
@@ -107,16 +107,17 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v4
 
-      - name: Download configuration files artifact
-        uses: actions/download-artifact@v3
+      - name: Download configuration file artifacts
+        uses: actions/download-artifact@v4
         with:
-          name: ${{ env.CONFIGURATIONS_ARTIFACT }}
+          merge-multiple: true
+          pattern: ${{ env.CONFIGURATIONS_ARTIFACT_PREFIX }}*
           path: ${{ env.CONFIGURATIONS_FOLDER }}
 
-      - name: Remove unneeded artifact
-        uses: geekyeggo/delete-artifact@v2
+      - name: Remove unneeded artifacts
+        uses: geekyeggo/delete-artifact@v5
         with:
-          name: ${{ env.CONFIGURATIONS_ARTIFACT }}
+          name: ${{ env.CONFIGURATIONS_ARTIFACT_PREFIX }}*
 
       - name: Merge label configuration files
         run: |