Add a make target to run interactive shell (#597)

This will allow jumping into a shell to run tests and other commands from that (similar to breeze)

CONTRIBUTING.rst

@@ -95,6 +95,7 @@ You can configure the Docker-based development environment as follows:
    - ``make run-mypy`` - Run MyPy checks
    - ``make run-tests`` - Run CI tests
    - ``make run-static-checks`` - Run CI static code checks
+   - ``make shell`` - To run bash/shell within a container (Allows interactive session)
 
    Following ports are accessible from the host machine:
 

Makefile

@@ -1,5 +1,5 @@
 .PHONY: dev logs stop clean build build-emr_eks_container_example_dag-image build-aws build-google-cloud build-run docs
-.PHONY: restart restart-all run-tests run-static-checks run-mypy run-local-lineage-server test-rc-deps help
+.PHONY: restart restart-all run-tests run-static-checks run-mypy run-local-lineage-server test-rc-deps shell help
 
 # If the first argument is "run"...
 ifeq (run-mypy,$(firstword $(MAKECMDGOALS)))
@@ -84,5 +84,8 @@ test-rc-deps: ## Test providers RC by building an image with given dependencies
 	python3 dev/scripts/trigger_master_dag.py '$(DEPLOYMENT_ID)' '$(ASTRONOMER_KEY_ID)' ' $(ASTRONOMER_KEY_SECRET)'
 	git checkout setup.cfg
 
+shell:  ## Runs a shell within a container (Allows interactive session)
+	docker compose -f dev/docker-compose.yaml run --rm airflow-scheduler bash
+
 help: ## Prints this message
 	@grep -E '^[a-zA-Z_-]+:.*?## .*$$' $(MAKEFILE_LIST) | sort | awk 'BEGIN {FS = ":.*?## "}; {printf "\033[36m%-41s\033[0m %s\n", $$1, $$2}'