Bump alpine from 3.20.3 to 3.21.0 (#599)

Bumps alpine from 3.20.3 to 3.21.0.


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Signed-off-by: dependabot[bot] <[email protected]>
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Dockerfile

@@ -27,7 +27,7 @@ COPY . /src/
 RUN make build
 
 # release stage
-FROM alpine:3.20.3 as release
+FROM alpine:3.21.0 as release
 RUN apk add --no-cache \
   mariadb-client \
   mariadb-connector-c \