Bump coursier/cache-action from 6.3 to 6.4 (#23)

Bumps [coursier/cache-action](https://github.com/coursier/cache-action) from 6.3 to 6.4.
- [Release notes](https://github.com/coursier/cache-action/releases)
- [Commits](coursier/cache-action@v6.3...v6.4)

---
updated-dependencies:
- dependency-name: coursier/cache-action
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/ci.yml

@@ -57,7 +57,7 @@ jobs:
         with:
           fetch-depth: 0
           submodules: true
-      - uses: coursier/cache-action@v6.3
+      - uses: coursier/cache-action@v6.4
       - uses: coursier/setup-action@v1.2.0-M3
         with:
           jvm: temurin:17
@@ -101,7 +101,7 @@ jobs:
         with:
           fetch-depth: 0
           submodules: true
-      - uses: coursier/cache-action@v6.3
+      - uses: coursier/cache-action@v6.4
       - uses: coursier/setup-action@v1.2.0-M3
         with:
           jvm: temurin:17
@@ -135,7 +135,7 @@ jobs:
         with:
           fetch-depth: 0
           submodules: true
-      - uses: coursier/cache-action@v6.3
+      - uses: coursier/cache-action@v6.4
       - uses: coursier/setup-action@v1.2.0-M3
         with:
           jvm: temurin:17