🌱 Update Cspo Image group to v3.20.3 (#202)

| datasource | package                  | from   | to     |
| ---------- | ------------------------ | ------ | ------ |
| docker     | docker.io/library/alpine | 3.20.2 | 3.20.3 |

Co-authored-by: cluster-stack-bot[bot] <143188378+cluster-stack-bot[bot]@users.noreply.github.com>
Co-authored-by: Roman Hros <roman.hros@dnation.cloud>

images/cspo/Dockerfile

@@ -23,7 +23,7 @@ RUN --mount=type=cache,target=/root/.cache --mount=type=cache,target=/go/pkg \
     go build -mod=vendor -trimpath -ldflags "-s -w ${LDFLAGS} -extldflags '-static'" \
     -o manager cmd/main.go
 
-FROM --platform=${BUILDPLATFORM} docker.io/library/alpine:3.20.2
+FROM --platform=${BUILDPLATFORM} docker.io/library/alpine:3.20.3
 WORKDIR /
 COPY --from=build /src/cluster-stack-provider-openstack/manager .