fix(ci)_: gomobile init android build

Otherwise CI builds were failing with :
```
github.com/status-im/status-go/mobile/requests
github.com/status-im/status-go/server/pairing/preflight
github.com/status-im/status-go/mobile
gobind/gobind
gobind/gobind
/nix/store/9cimpd18hk5dly63v76nwjdfc6h284bm-gomobile-0-unstable-2024-12-13/bin/gomobile: open build/bin/statusgo.aar: no such file or directory
make: *** [Makefile:186: statusgo-android] Error 1
```

failing CI job : https://ci.status.im/blue/organizations/jenkins/status-go%2Fprs%2Fandroid/detail/PR-6612/13/pipeline/

I tried to build manually on `linux-02` and got the same failure, also this build directory was absent.
```
bash-5.2$ ls -la build/ 2>/dev/null || echo "build directory doesn't exist"
build directory doesn't exist
```

also fixes : #6579

Author: siddarthkay

Makefile

@@ -183,7 +183,8 @@ status-go-deps:
 statusgo-android: generate
 statusgo-android: ##@cross-compile Build status-go for Android
 	@echo "Building status-go for Android..."
-	export GO111MODULE=off; \
+	mkdir -p build/bin \
+	export GO111MODULE=on GOFLAGS="-mod=mod"; \
 	gomobile init; \
 	gomobile bind -v \
 		-target=android -ldflags="-s -w" \