chore(deps): update alpine docker tag to v3.18.5

Author: renovate[bot]

Dockerfile

@@ -11,7 +11,7 @@ COPY . /app/
 ARG CI_COMMIT_SHORT_SHA
 RUN make build
 
-FROM alpine:3.12.3
+FROM alpine:3.18.5
 RUN  apk add --no-cache --virtual=.run-deps ca-certificates &&\
   mkdir /app