Bump the actions group with 2 updates

Bumps the actions group with 2 updates: [KineticCafe/actions](https://github.com/kineticcafe/actions) and [actions/cache](https://github.com/actions/cache).


Updates `KineticCafe/actions` from 1.0 to 1.2
- [Changelog](https://github.com/KineticCafe/actions/blob/main/Changelog.md)
- [Commits](KineticCafe/actions@v1.0...v1.2)

Updates `actions/cache` from 3 to 4
- [Release notes](https://github.com/actions/cache/releases)
- [Changelog](https://github.com/actions/cache/blob/main/RELEASES.md)
- [Commits](actions/cache@v3...v4)

---
updated-dependencies:
- dependency-name: KineticCafe/actions
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: actions
- dependency-name: actions/cache
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: actions
...

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

.github/workflows/dependabot-automerge.yml

@@ -12,6 +12,6 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: KineticCafe/actions/dependabot-automerge@v1.0
+      - uses: KineticCafe/actions/dependabot-automerge@v1.2
         with:
           update-type: minor

.github/workflows/elixir.yml

@@ -58,7 +58,7 @@ jobs:
           otp-version: ${{ matrix.otp }}
           elixir-version: ${{ matrix.elixir }}
 
-      - uses: actions/cache@v3
+      - uses: actions/cache@v4
         with:
           key: builds@elixir-${{ steps.install.outputs.elixir-version }}-otp-${{ steps.install.outputs.otp-version }}-mix-${{ hashFiles('mix.lock') }}
           path: |
@@ -81,7 +81,7 @@ jobs:
       - run: mix credo --strict
         if: matrix.credo
 
-      - uses: actions/cache@v3
+      - uses: actions/cache@v4
         if: matrix.dialyzer
         with:
           key: plts@elixir-${{ steps.install.outputs.elixir-version }}-otp-${{ steps.install.outputs.otp-version }}-mix-${{ hashFiles('mix.lock') }}