Build(deps): Bump actions/upload-artifact from 4.5.0 to 4.6.0

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 4.5.0 to 4.6.0.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v4.5.0...v4.6.0)

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

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

Author: dependabot[bot]

.github/workflows/cache_data.yaml

@@ -76,7 +76,7 @@ jobs:
 
       # Upload the downloaded files as artifacts to GitHub
       - name: Upload artifacts to GitHub
-        uses: actions/upload-artifact@v4.5.0
+        uses: actions/upload-artifact@v4.6.0
         with:
           name: gmt-cache
           include-hidden-files: true

.github/workflows/ci_tests.yaml

@@ -177,7 +177,7 @@ jobs:
 
       # Upload diff images on test failure
       - name: Upload diff images if any test fails
-        uses: actions/upload-artifact@v4.5.0
+        uses: actions/upload-artifact@v4.6.0
         if: failure()
         with:
           name: artifact-${{ runner.os }}-${{ matrix.python-version }}

.github/workflows/ci_tests_dev.yaml

@@ -187,7 +187,7 @@ jobs:
 
       # Upload diff images on test failure
       - name: Upload diff images if any test fails
-        uses: actions/upload-artifact@v4.5.0
+        uses: actions/upload-artifact@v4.6.0
         if: ${{ failure() }}
         with:
           name: artifact-GMT-${{ matrix.gmt_git_ref }}-${{ runner.os }}

.github/workflows/publish-to-pypi.yml

@@ -72,7 +72,7 @@ jobs:
         ls -lh dist/
 
     - name: Store the distribution packages
-      uses: actions/upload-artifact@v4.5.0
+      uses: actions/upload-artifact@v4.6.0
       with:
         name: python-package-distributions
         path: dist/