Parallelises test stages

.gitlab-ci.yml

@@ -5,15 +5,14 @@ before_script:
   - pip3 install -q asn1tools lxml xmlschema
 
 stages:
-  - Check ASN.1
-  - Check XSD
+  - Check Schemas
 
 checkASN1:
-  stage: Check ASN.1
+  stage: Check Schemas
   script:
   - python3 testing/check_asn1.py
 
 checkXSD:
-    stage: Check XSD
+    stage: Check Schemas
     script:
     - python3 testing/check_xsd.py
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