refactor: Move git version info gather in into a build script

src/build_metadata/Cargo.toml

@@ -0,0 +1,34 @@
+[package]
+name = "conduwuit_build_metadata"
+categories.workspace = true
+description.workspace = true
+edition.workspace = true
+keywords.workspace = true
+license.workspace = true
+readme.workspace = true
+repository.workspace = true
+version.workspace = true
+
+
+build = "build.rs"
+# [[bin]]
+# path = "main.rs"
+# name = "conduwuit_build_metadata" 
+
+[lib]
+path = "mod.rs"
+crate-type = [
+	"rlib",
+#	"dylib",
+]
+
+[features]
+
+
+[dependencies]
+
+[build-dependencies]
+built = {version = "0.7", features = ["cargo-lock", "dependency-tree"]}
+
+[lints]
+workspace = true