Merge pull request #489 from external-secrets/dependabot/docker/alpine-3.14.3

Bump alpine from 3.14.2 to 3.14.3

Dockerfile

@@ -1,4 +1,4 @@
-FROM alpine:3.14.2
+FROM alpine:3.14.3
 ARG TARGETOS
 ARG TARGETARCH
 COPY bin/external-secrets-${TARGETOS}-${TARGETARCH} /bin/external-secrets