private static File getRepoContainerDirectory() {
		File repo = getCurrentRepoDirectory();
		if (repo == null) {
			return null;
		}
		File repoContainer = repo.getParentFile();
		return repoContainer;
	}
Returns a directory that contains all repos for a given git clone. This directory name 
is unique to the active clone collection, which makes it useful for creating unique 
temporary directories to allow multiple simultaneous test runs.

@return the parent dir of the current repo
Ghidra/Framework/Generic/src/main/java/ghidra/framework/TestApplicationUtils.java