[ci] Use separate regex rules.

.gitlab-ci.yml

@@ -145,7 +145,9 @@ eva-domains:
   <<: *eva_domains
   only:
     variables:
-      - $CI_COMMIT_BRANCH =~ /.*[-_/.][Ee]va[-_/.].*|^[Ee]va[-_/.].*|.*[-_/.][Ee]va$/
+      - $CI_COMMIT_BRANCH =~ /.*[-_/.][Ee]va[-_/.].*/
+      - $CI_COMMIT_BRANCH =~ /^[Ee]va[-_/.].*/
+      - $CI_COMMIT_BRANCH =~ /.*[-_/.][Ee]va$/
 
 eva-domains-nightly:
   <<: *eva_template