chore: use tarpaulin-install action to install tarpaulin.

Updates the ci.yaml workflow file to use the new github action created
to install the cargo tarpaulin.

Signed-off-by: José Guilherme Vanz <jguilhermevanz@suse.com>

Author: jvanz

.github/workflows/ci.yml

@@ -95,9 +95,7 @@ jobs:
           profile: minimal
           toolchain: stable
           override: true
-      - uses: taiki-e/install-action@dabb9c1ee51c21c545764a0d517f069ff52e6477 # v2.28.1
-        with:
-          tool: cargo-tarpaulin
+      - uses: kubewarden/github-actions/tarpaulin-install@971e9a094d010900399dafc13fd4787bffce6d81 #v3.1.18
       - name: Generate unit-tests coverage
         run: make coverage-unit-tests
       - name: Upload unit-tests coverage to Codecov