chore(deps): update alpine docker tag to v3.23.3 (#1918)

Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

Dockerfile

@@ -10,7 +10,7 @@ ARG TAG
 RUN CGO_ENABLED=0 GOOS=linux go build -o deck \
       -ldflags "-s -w -X github.com/kong/deck/cmd.VERSION=$TAG -X github.com/kong/deck/cmd.COMMIT=$COMMIT"
 
-FROM alpine:3.22.0
+FROM alpine:3.23.3@sha256:25109184c71bdad752c8312a8623239686a9a2071e8825f20acb8f2198c3f659
 RUN adduser --disabled-password --gecos "" deckuser
 RUN apk --no-cache add ca-certificates jq
 USER deckuser