build(deps): bump actions/upload-artifact from 3 to 4

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 3 to 4.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v3...v4)

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

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

.github/workflows/example.yml

@@ -52,7 +52,7 @@ jobs:
         env:
           COREBOOT_VERSION: ${{ matrix.coreboot-version }}
       - name: Get artifacts
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: coreboot-${{ matrix.coreboot-version }}
           path: output
@@ -99,7 +99,7 @@ jobs:
         env:
           LINUX_VERSION: ${{ matrix.linux-version }}
       - name: Get artifacts
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: ${{ matrix.linux-version }}
           path: output
@@ -136,7 +136,7 @@ jobs:
         env:
           EDK2_VERSION: ${{ matrix.edk2-version }}
       - name: Get artifacts
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: ${{ matrix.edk2-version }}
           path: output