[+] Metrics (#95)

* Add actuator and micrometer

* update

* [-] Remove unused import

* [O] Make code less verbose

* format

* refactor

---------

Co-authored-by: Azalea <22280294+hykilpikonna@users.noreply.github.com>

src/main/java/icu/samnyan/aqua/net/games/mai2/Mai2Import.kt

@@ -48,4 +48,4 @@ class Mai2Import(
 ) {
     override fun createEmpty() = Maimai2DataExport()
     override val userDataRepo = repos.userData
-}
+}