Bump coursier/cache-action from 6.3 to 6.4 (#18)

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] <[email protected]>

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

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -25,7 +25,7 @@ jobs:
       with:
         fetch-depth: 0
         submodules: true
-    - uses: coursier/cache-action@v6.3
+    - uses: coursier/cache-action@v6.4
     - uses: coursier/[email protected]
       with:
         jvm: temurin:17
@@ -48,7 +48,7 @@ jobs:
       with:
         fetch-depth: 0
         submodules: true
-    - uses: coursier/cache-action@v6.3
+    - uses: coursier/cache-action@v6.4
     - uses: coursier/[email protected]
       with:
         jvm: 8
@@ -64,7 +64,7 @@ jobs:
       with:
         fetch-depth: 0
         submodules: true
-    - uses: coursier/cache-action@v6.3
+    - uses: coursier/cache-action@v6.4
     - uses: coursier/[email protected]
       with:
         jvm: temurin:17