style: Use pre-commit tool and add simple config (#2029)

I started with really simple pre-commit hooks and will add more on top.

Important files:
- `.pre-commit-config.yaml` - the config for pre-commit
- `.github/workflows/pre-commit.yml` - runs pre-commit hooks in branches
and `develop`
- `.github/workflows/pre-commit-autoupdate.yml` - autoupdates pre-commit
hooks once in a month

tests/unit/app/VerifyConfigTests.cpp

@@ -60,7 +60,7 @@ TEST(VerifyConfigTest, InvalidJsonFile)
     static constexpr auto kINVALID_JSON = R"({
                                              "server": {
                                                 "ip": "0.0.0.0",
-                                                "port": 51233, 
+                                                "port": 51233,
                                             }
                                         })";
     auto const tmpConfigFile = TmpFile(kINVALID_JSON);