perf(php): Lazy eval php (#2190)

* perf(php): evaluate version lazily

* fix(php): update format string; update tests

Co-authored-by: Moritz Vetter <mv@3yourmind.com>

src/configs/php.rs

@@ -15,7 +15,7 @@ impl<'a> RootModuleConfig<'a> for PhpConfig<'a> {
         PhpConfig {
             symbol: "🐘 ",
             style: "147 bold",
-            format: "via [$symbol$version]($style) ",
+            format: "via [$symbol($version )]($style)",
             disabled: false,
         }
     }