feat: load application and repository configuration from env and TOML

config.example.toml

@@ -0,0 +1,11 @@
+[[repo1]]
+GithubUrl = "https://github.com/owner/repo1"
+ForgejoUrl = "https://forgejo.example.com/owner/repo1"
+IncludeRegex = ".*"
+ExcludeRegex = "^$"
+
+[[repo2]]
+GithubUrl = "https://github.com/owner/repo2"
+ForgejoUrl = "https://forgejo.example.com/owner/repo2"
+IncludeRegex = "^v.*"
+ExcludeRegex = ".*-beta.*"