build: adds a rule in Makefile to test on fips

The prior commit enables running tests on fips compliant systems by
specifying tests to be marked flaky if needed so. This commit extends
the ability by adding a rule to the Makefile so that tests can be run on
fips compliant systems using the make command.

Fixes: nodejs#14746

Author: komawar

Makefile

@@ -505,6 +505,9 @@ test-v8 test-v8-intl test-v8-benchmarks test-v8-all:
 		"$ git clone https://github.com/nodejs/node.git"
 endif
 
+test-on-fips:
+	$(PYTHON) tools/test.py --type=fips
+
 # Google Analytics ID used for tracking API docs page views, empty
 # DOCS_ANALYTICS means no tracking scripts will be included in the
 # generated .html files