chore(deps): bump alpine from 3.21 to 3.22 (#266)

Bumps alpine from 3.21 to 3.22.

---
updated-dependencies:
- dependency-name: alpine
  dependency-version: '3.22'
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

Dockerfile

@@ -5,7 +5,7 @@ WORKDIR /app
 COPY . /app/
 RUN --mount=type=cache,target=/go/pkg/mod CGO_ENABLED=0 GOOS=linux go build -ldflags '-extldflags "-static"' -o /app/flagger-k6-webhook cmd/main.go
 
-FROM alpine:3.21
+FROM alpine:3.22
 
 COPY --from=build /app/flagger-k6-webhook /usr/bin/flagger-k6-webhook
 COPY --from=grafana/k6 /usr/bin/k6 /usr/bin/k6