ci: Remove dependence on travis, use it as fallback env

ci/retry/README.md

@@ -35,7 +35,7 @@ Help:
         -m, --min=secs                   Exponenetial Backoff: minimum sleep amount (seconds): Default 0.3
         -x, --max=secs                   Exponenetial Backoff: maximum sleep amount (seconds): Default 60
         -f, --fail="script +cmds"        Fail Script: run in case of final failure
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+
 ### Examples
 
 No problem: