docker: Use Alpine 3.22 image

An upgrade from 3.20

Signed-off-by: Donatas Abraitis <[email protected]>

Author: ton31337

docker/alpine/Dockerfile

@@ -1,7 +1,7 @@
 # syntax=docker/dockerfile:1
 
 # Create a basic stage set up to build APKs
-FROM alpine:3.20 as alpine-builder
+FROM alpine:3.22 as alpine-builder
 RUN apk add \
 		--update-cache \
 		abuild \
@@ -25,7 +25,7 @@ RUN cd /src/libyang \
 	&& abuild -r -P /pkgs/apk
 
 # This stage builds a dist tarball from the source
-FROM alpine:3.20 as source-builder
+FROM alpine:3.22 as source-builder
 RUN mkdir -p /src/alpine /pkgs/apk
 COPY alpine/APKBUILD.in /src/alpine
 COPY --from=alpine-apk-builder-libyang /pkgs/apk/src /pkgs/apk
@@ -59,7 +59,7 @@ RUN cd /dist \
 	&& abuild -r -P /pkgs/apk
 
 # This stage installs frr from the apk
-FROM alpine:3.20
+FROM alpine:3.22
 RUN mkdir -p /pkgs/apk
 COPY --from=alpine-apk-builder /pkgs/apk/ /pkgs/apk/
 RUN apk add \