Bump coursier/cache-action from 6 to 7

Bumps [coursier/cache-action](https://github.com/coursier/cache-action) from 6 to 7.
- [Release notes](https://github.com/coursier/cache-action/releases)
- [Commits](coursier/cache-action@v6...v7)

---
updated-dependencies:
- dependency-name: coursier/cache-action
  dependency-version: '7'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -27,7 +27,7 @@ jobs:
     - shell: bash
       name: install sbt
       run: curl -Ls https://raw.githubusercontent.com/dwijnand/sbt-extras/aff36a23f7213d94189aabfcc47a32b11f3a6fba/sbt > ./sbt && chmod 0755 ./sbt
-    - uses: coursier/cache-action@v6
+    - uses: coursier/cache-action@v7
     - run: git config core.whitespace tab-in-indent,trailing-space,space-before-tab,cr-at-eol
     - run: git show --oneline --check
     - run:  |