Merge pull request 'chore(deps): update alpine docker tag to v3.21.3' (#12) from renovate/alpine-3.x into main

Reviewed-on: #12

Dockerfile

@@ -1,4 +1,4 @@
-FROM alpine:3.21.2 AS downloader
+FROM alpine:3.21.3 AS downloader
 
 # renovate: datasource=github-releases depName=pocketbase/pocketbase extractVersion=^v(?<version>.*)$
 ARG VERSION=0.23.2
@@ -13,7 +13,7 @@ ENV BUILDX_ARCH="${TARGETOS:-linux}_${TARGETARCH:-amd64}${TARGETVARIANT}"
 ADD https://github.com/pocketbase/pocketbase/releases/download/v${VERSION}/pocketbase_${VERSION}_${BUILDX_ARCH}.zip /tmp/pb.zip
 RUN unzip /tmp/pb.zip -d /pb/
 
-FROM alpine:3.21.2
+FROM alpine:3.21.3
 RUN apk update && apk add ca-certificates && rm -rf /var/cache/apk/*
 
 EXPOSE 8090