Fix jq invocation errors with numeric task roles

[zhiltsov-max]

Fixes messages in task stderr log when using a numeric-only task role:

...
jq: error: Invalid numeric literal at EOF at line 1, column 6 (while parsing '.0009.') at <top-level>, line 1:
.0009.taskStatuses.taskStatusArray[] | .containerIp, .containerPorts, .taskIndex
jq: error: syntax error, unexpected IDENT, expecting $end (Unix shell quoting issues?) at <top-level>, line 1:
.0009.taskStatuses.taskStatusArray[] | .containerIp, .containerPorts, .taskIndex      
jq: 2 compile errors
...

• Added quotes for task role names in jq queries

[coveralls]

Coverage increased (+0.01%) to 52.659% when pulling ea9783d on zhiltsov-max:zhiltsov-max/fix-jq-errors-with-numeric-taskroles into 1e0c142 on Microsoft:master.

[abuccts]

Merged, thanks for your contribution!