Is there a way to use a local maven repo

Basically, I'd like to replicate what is possible on Gradle via

```groovy
repositories {
mavenLocal()
maven {
// All of React Native (JS, Obj-C sources, Android binaries) is installed from npm
url "$rootDir/../node_modules/react-native/android"
}
}
```

So far I've tried

```
maven_install(
artifacts = [
"com.facebook.react:react-native:0.63.3",
],
repositories = [
"file:///Users/bruno/repo/node_modules/react-native/android",
],
)
```

and

```
android_library(
name = "main_application",
srcs = [
"MainActivity.java",
"MainApplication.java",
],
manifest = "AndroidManifest.xml",
resource_files = glob(["res/**"]),
deps = [
"@maven//:com_facebook_react_react_native",
],
)
```

but it doesn't seem to be working, and I am getting this error

```
(14:46:46) ERROR: [...] depends on @maven//:com_facebook_react_react_native in repository @maven which failed to fetch. no such package '@maven//': Only artifacts downloaded over http(s) are supported: com.facebook.react:react-native:0.63.3
```

Start with the maven_install configuration and its file:// repository argument, then follow how the @maven dependency is fetched for android_library. Reproduce the setup using MainActivity.java, MainApplication.java, AndroidManifest.xml, and the reported React Native artifact; done means establishing and testing a supported local-repository workflow or documenting that it is unsupported.

Written by the indexing model from the issue text.