Remove the qa_ prefix from the job names

It is redundant since the main jobs have qa in their name now.

.gitlab/Fedora-Linux-CI.yml

@@ -91,7 +91,8 @@ fedora_qa:
     - .only_code
   parallel:
     matrix:
-      - TEST: [qa_python, qa_common, qa_gerbview, qa_pcbnew, qa_eeschema, qa_kimath, qa_sexpr, qa_kicad2step]
+      # The name of the test without the qa_ prefix
+      - TEST: [python, common, gerbview, pcbnew, eeschema, kimath, sexpr, kicad2step]
   needs:
     - job: fedora_build_linux
       artifacts: true

.gitlab/Ubuntu-20.04-CI.yml

@@ -116,4 +116,5 @@ ubuntu20.04_qa:
     - schedules
   parallel:
     matrix:
-      - TEST: [qa_python, qa_common, qa_gerbview, qa_pcbnew, qa_eeschema, qa_kimath, qa_sexpr, qa_kicad2step]
+      # The name of the test without the qa_ prefix
+      - TEST: [python, common, gerbview, pcbnew, eeschema, kimath, sexpr, kicad2step]

.gitlab/templates.yml

@@ -24,7 +24,7 @@
     - export CTEST_OUTPUT_ON_FAILURE=1
   script:
     - cd build/linux/qa
-    - ctest -R ${TEST}
+    - ctest -R qa_${TEST}
   # GitLab supports displaying the results in the GUI through JUNIT artifacts
   # (https://docs.gitlab.com/ee/ci/junit_test_reports.html)
   # so we upload the JUNIT results. Note that there is a bug with how paths