🌱(deps): Bump the all-docker-deps group

Bumps the all-docker-deps group in /cmd/omniwitness with 2 updates: golang and alpine.


Updates `golang` from `c694a4d` to `6c5c959`

Updates `alpine` from 3.20.3 to 3.21.0

---
updated-dependencies:
- dependency-name: golang
  dependency-type: direct:production
  dependency-group: all-docker-deps
- dependency-name: alpine
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: all-docker-deps
...

Signed-off-by: dependabot[bot] <[email protected]>

cmd/omniwitness/Dockerfile

@@ -1,4 +1,4 @@
-FROM golang:1.23-alpine@sha256:c694a4d291a13a9f9d94933395673494fc2cc9d4777b85df3a7e70b3492d3574 AS builder
+FROM golang:1.23-alpine@sha256:6c5c9590f169f77c8046e45c611d3b28fe477789acd8d3762d23d4744de69812 AS builder
 RUN apk add --no-cache gcc musl-dev
 
 ARG GOFLAGS=""
@@ -20,7 +20,7 @@ COPY . .
 RUN go build -o bin/omniwitness ./cmd/omniwitness
 
 # Build release image
-FROM alpine:3.20.3@sha256:1e42bbe2508154c9126d48c2b8a75420c3544343bf86fd041fb7527e017a4b4a
+FROM alpine:3.21.0@sha256:21dc6063fd678b478f57c0e13f47560d0ea4eeba26dfc947b2a4f81f686b9f45
 
 COPY --from=builder /build/bin/omniwitness /bin/omniwitness
 ENTRYPOINT ["/bin/omniwitness"]