Add more linting to various yaml or json files

Was led to do this after I had an error late in the testing process after
I made a typo in the `services/essentials.yaml` file.

distribution/Makefile

@@ -11,6 +11,7 @@ SQUID_VOLUME_NAME=squid-cache
 all: check container
 
 lint: shunit2
+	../tools/yamllint -s docker-compose*.yml
 	../tools/yamllint -s config/as-code/*.yaml
 	../tools/shellcheck -x tests/tests.sh
 	$(MAKE) -C environments lint

distribution/docker-compose.squid-cache.yml

@@ -1,4 +1,5 @@
-# This file is docker-compose override file, cf. https://docs.docker.com/compose/extends/#adding-and-overriding-configuration
+# This file is docker-compose override file, cf.
+# https://docs.docker.com/compose/extends/#adding-and-overriding-configuration
 # It is use in conjunction with docker-compose.yml core file to add a specific configuration
 # to set up an Squid proxy to accelerate plugins downloads during Essentials development.
 # This file is automatically used by the tests/*tests.sh files.

services/.yamllint

@@ -0,0 +1,6 @@
+---
+rules:
+  line-length:
+    max: 100
+    allow-non-breakable-words: true
+    allow-non-breakable-inline-mappings: false

services/Makefile

@@ -13,6 +13,9 @@ check: depends lint migrate
 	fi;
 
 lint: depends
+	../tools/yamllint -s docker-compose*.yml
+	../tools/yamllint -s essentials.yaml
+	../tools/jsonlint --quiet ingest.json
 	npm run eslint
 
 fix-formatting: depends