fix: Resolve vulnerabilities

Signed-off-by: Anurag Rajawat <anurag@stepsecurity.io>

Author: anurag-stepsecurity

Dockerfile

@@ -1,9 +1,9 @@
-FROM golang:1.25-alpine3.23@sha256:f6751d823c26342f9506c03797d2527668d095b0a15f1862cddb4d927a7a4ced
+FROM golang:1.26-alpine3.23@sha256:2389ebfa5b7f43eeafbd6be0c3700cc46690ef842ad962f6c5bd6be49ed82039
 
 ARG GHCOMMIT_VERSION=v0.1.77
 
 # hadolint ignore=DL3018
-RUN apk add --no-cache bash git-crypt curl git
+RUN apk add --no-cache bash git-crypt curl git && apk upgrade --no-cache zlib
 
 # Download and build ghcommit from source
 RUN git clone --depth 1 --branch "${GHCOMMIT_VERSION}" https://github.com/planetscale/ghcommit.git /ghcommit