build(deps): bump opensuse/leap from 15.4 to 15.5

Bumps opensuse/leap from 15.4 to 15.5.

---
updated-dependencies:
- dependency-name: opensuse/leap
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Dockerfile

@@ -13,7 +13,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-FROM registry.opensuse.org/opensuse/leap:15.4
+FROM registry.opensuse.org/opensuse/leap:15.5
 MAINTAINER "Aleksa Sarai <asarai@suse.com>"
 
 # We have to use out-of-tree repos because several packages haven't been merged