Bump golang from 1.21.3 to 1.21.4 in /build/liqonet

Bumps golang from 1.21.3 to 1.21.4.

---
updated-dependencies:
- dependency-name: golang
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

build/liqonet/Dockerfile

@@ -1,4 +1,4 @@
-FROM golang:1.21.3 as goBuilder-wg
+FROM golang:1.21.4 as goBuilder-wg
 
 ARG VERSION=0.0.20230223
 
@@ -8,7 +8,7 @@ RUN git clone -b ${VERSION} https://git.zx2c4.com/wireguard-go
 WORKDIR /go/wireguard-go
 RUN CGO_ENABLED=0 make
 
-FROM golang:1.21.3 as goBuilder
+FROM golang:1.21.4 as goBuilder
 WORKDIR /tmp/builder
 
 COPY go.mod ./go.mod