build(deps): bump actions/upload-artifact from 4 to 5

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 4 to 5.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v4...v5)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-version: '5'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/apidiff.yml

@@ -29,7 +29,7 @@ jobs:
           echo '{"id": ${{ github.event.pull_request.number }}, "semver-type": "${{ steps.apidiff.outputs.semver-type }}"}' > apidiff.json
 
       - name: Upload apidiff.json
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: apidiff
           path: apidiff.json

.github/workflows/ci.yml

@@ -157,7 +157,7 @@ jobs:
         run: vimto -kernel :stable-selftests -- go test -short -run '^$' -bench . -benchtime=1x ./...
 
       - name: Upload coredumps
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         if: ${{ failure() }}
         with:
           name: cores
@@ -168,7 +168,7 @@ jobs:
 
       - name: Upload Test Results
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: Test Results (previous stable Go)
           path: junit.xml
@@ -200,7 +200,7 @@ jobs:
 
       - name: Upload Test Results
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: Test Results (arm64)
           path: junit.xml
@@ -244,7 +244,7 @@ jobs:
 
       - name: Upload Test Results
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: Test Results (linux ${{ matrix.tag }})
           path: junit.xml
@@ -379,7 +379,7 @@ jobs:
 
       - name: Upload Test Results
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: Test Results (windows ${{ matrix.tag }})
           path: junit.xml