fix: Dockerfile to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-ALPINE314-APKTOOLS-1533752
- https://snyk.io/vuln/SNYK-ALPINE314-OPENSSL-1569445
- https://snyk.io/vuln/SNYK-ALPINE314-OPENSSL-1569445
- https://snyk.io/vuln/SNYK-ALPINE314-ZLIB-2976174
- https://snyk.io/vuln/SNYK-ALPINE314-BUSYBOX-1920745

Dockerfile

@@ -46,7 +46,7 @@ RUN set -xe && \
 
 
 # Final image
-FROM alpine:3.14.0
+FROM alpine:3.21.0
 
 RUN apk add --update --no-cache ca-certificates tzdata bash curl