Changes:

• Adds a run-database make target to run just the database service for testing
  This was purely for convenience

• Uses app-pgstac instead of app-sqlalchemy in test-pgstac target

• Removes test-pgstac dependency on pgstac-install target
  This was causing problems when installing rasterio in my environment and we don't appear to need it since we are running the tests inside the stac-fastapi-pgstac container.

• UPDATE: Adds run-joplin-sqlalchemy make target and adds it as a dependency to test-sqlalchemy to ensure test data is loaded prior to running unit tests.

Again, could be some user error here, so let me know if I'm off-base.