chore(deps): update alpine docker digest to 51183f2 (#142)

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

Author: renovate[bot]

Dockerfile

@@ -18,7 +18,7 @@ COPY . ./
 RUN cargo build -p pollux --release
 
 
-FROM alpine@sha256:4b7ce07002c69e8f3d704a9c5d6fd3053be500b7f1c69fc0d80990c2ad8dd412 AS extras
+FROM alpine@sha256:51183f2cfa6320055da30872f211093f9ff1d3cf06f39a0bdb212314c5dc7375 AS extras
 
 RUN apk update && \
     apk upgrade --no-cache && \