Add pipeline execution for tags and manual

.gitlab-ci.yml

 stages:
   - triggers
 
-trigger_benchmarks:
+benchmarks:
   stage: triggers
   trigger:
     include: benchmarks/.gitlab-ci.yml
   rules:
+    - if: "$CI_COMMIT_TAG"
+      when: always
     - changes:
-        - benchmarks/*
+      - benchmarks/*
+      when: always
+    - when: manual
+      allow_failure: true
+  
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