Bump alpine from 3.20.3 to 3.21.0 (#3595)

* Bump alpine from 3.20.3 to 3.21.0

Bumps alpine from 3.20.3 to 3.21.0.

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

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

* don't call update-ca-certificates

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Gerard Snaauw <gerard.snaauw@nedap.com>

Dockerfile

@@ -28,12 +28,11 @@ COPY . .
 RUN GOOS=$TARGETOS GOARCH=$TARGETARCH go build -ldflags="-w -s -X 'github.com/nuts-foundation/nuts-node/core.GitCommit=${GIT_COMMIT}' -X 'github.com/nuts-foundation/nuts-node/core.GitBranch=${GIT_BRANCH}' -X 'github.com/nuts-foundation/nuts-node/core.GitVersion=${GIT_VERSION}'" -o /opt/nuts/nuts
 
 # alpine
-FROM alpine:3.20.3
+FROM alpine:3.21.0
 RUN apk update \
   && apk add --no-cache \
              tzdata \
-             curl \
-  && update-ca-certificates
+             curl
 COPY --from=builder /opt/nuts/nuts /usr/bin/nuts
 
 HEALTHCHECK --start-period=30s --timeout=5s --interval=10s \