Bump actions/upload-artifact from 4 to 6

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 4 to 6.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v4...v6)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/release.yml

@@ -97,7 +97,7 @@ jobs:
 
       - name: Upload Build Artifacts
         if: success()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         with:
           name: ${{ env.MODULE_ID }}
           path: |

.github/workflows/tests.yml

@@ -97,7 +97,7 @@ jobs:
 
       - name: Upload Test Results to Artifacts
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         with:
           name: test-results-${{ matrix.cfengine }}-${{ matrix.coldboxVersion }}
           path: |
@@ -110,7 +110,7 @@ jobs:
 
       - name: Upload Debug Logs To Artifacts
         if: ${{ failure() }}
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         with:
           name: Failure Debugging Info - ${{ matrix.cfengine }} - ${{ matrix.coldboxVersion }}
           path: |