ci(release): stamp released binaries with their source revision (#6223)

* ci(release): stamp released binaries with their source revision

The release job builds `main.go`, which Go records as a file list rather than a
package, so the binary carries no VCS metadata at all: `go version -m xui-release`
reports command-line-arguments and nothing else. There is no way to tell which
commit a published binary came from, which is exactly what you want when a user
reports a bug against "the latest release".

Build the package with -buildvcs=true instead. Same output, same flags, plus
vcs.revision and vcs.time in the binary.

* ci(release): give the Windows job the git it needs to stamp

-buildvcs=true fails the build when it cannot read VCS state, and the MSYS2
shell the Windows job runs in has no git on PATH. Install it there so the
Windows binary carries the same revision as the Linux ones instead of the flag
turning into a build break.

---------

Co-authored-by: n0ctal <[email protected]>

.github/workflows/release.yml

@@ -109,7 +109,7 @@ jobs:
           if [[ "$GITHUB_REF" != refs/tags/* ]]; then
             LDFLAGS="$LDFLAGS -X github.com/mhsanaei/3x-ui/v3/internal/config.buildCommit=${GITHUB_SHA::8} -X github.com/mhsanaei/3x-ui/v3/internal/config.buildDate=$(date -u +%Y-%m-%dT%H:%M:%SZ)"
           fi
-          go build -ldflags "$LDFLAGS" -o xui-release -v main.go
+          go build -buildvcs=true -ldflags "$LDFLAGS" -o xui-release -v .
           file xui-release
           ldd xui-release || echo "Static binary confirmed"
 
@@ -247,6 +247,7 @@ jobs:
           msystem: MINGW64
           update: true
           install: >-
+            git
             mingw-w64-x86_64-gcc
             mingw-w64-x86_64-sqlite3
             mingw-w64-x86_64-pkg-config
@@ -270,7 +271,7 @@ jobs:
           if [[ "$GITHUB_REF" != refs/tags/* ]]; then
             LDFLAGS="$LDFLAGS -X github.com/mhsanaei/3x-ui/v3/internal/config.buildCommit=${GITHUB_SHA:0:8} -X github.com/mhsanaei/3x-ui/v3/internal/config.buildDate=$(date -u +%Y-%m-%dT%H:%M:%SZ)"
           fi
-          go build -ldflags "$LDFLAGS" -o xui-release.exe -v main.go
+          go build -buildvcs=true -ldflags "$LDFLAGS" -o xui-release.exe -v .
 
       - name: Copy and download resources
         shell: pwsh