Bump actions/upload-artifact from 4 to 7

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 4 to 7.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v4...v7)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-version: '7'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/verify.yml

@@ -112,7 +112,7 @@ jobs:
           GH_TOKEN: ${{ secrets.GH_TOKEN }}
           GOCOVER_MODE: set
       - name: Store test coverage
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: unit_cover
           path: cover.out
@@ -146,7 +146,7 @@ jobs:
         shell: bash
         run: go tool covdata textfmt -i=integration_tests/gocover -o cover.out
       - name: Store test coverage
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: integration_cover
           path: cover.out
@@ -200,7 +200,7 @@ jobs:
         shell: bash
         run: go tool cover -html=cover.out -o cover.html
       - name: Upload test coverage
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: test_coverage
           path: |