added trim to topic names to remove leading whitespace if exists

[ravib777]

Problem

If multiple topics are provided in the list with an intention to write data to corresponding index, example:
"topics":` "splunk-qs, splunk-abc",
"splunk.indexes": "index1,index2",

the leading space before splunk-abc will cause the mapping to not work and instead of writing to index2, the connector will write all messages from splunk-abc topic to default index (main).

Solution

Trim topic name before adding it to the map

Does this solution apply anywhere else?

• yes
• [ x] no

If yes, where?

Test Strategy

Testing done:

• Unit tests
• Integration tests
• System tests
• [x ] Manual tests

Release Plan

[github-actions]

Unit Test Results

172 tests   172 ✅  37s ⏱️
 24 suites    0 💤
 24 files      0 ❌

Results for commit ffa8355.