chore(deps): bump alpine from `a2d49ea` to `28bd5fe` in /hack/api-docs (#6472)

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

hack/api-docs/Dockerfile

@@ -11,7 +11,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-FROM alpine:3.24@sha256:a2d49ea686c2adfe3c992e47dc3b5e7fa6e6b5055609400dc2acaeb241c829f4
+FROM alpine:3.24@sha256:28bd5fe8b56d1bd048e5babf5b10710ebe0bae67db86916198a6eec434943f8b
 RUN apk add -U --no-cache \
     bash \
     diffutils \