CSPL-3918: Upgrade GoLang version

[gabrielm-splunk]

Description

Upgrade GoLang version

Key Changes

go.mod change to upgrade GoLang version

Testing and Verification

• Ran and built operator locally
• Ran unit tests

Related Issues

• Jira: https://splunk.atlassian.net/browse/CSPL-3918
• Security Vulnerability: https://splunk.atlassian.net/browse/VULN-42799

PR Checklist

• Code changes adhere to the project's coding standards.
• Relevant unit and integration tests are included.
• Documentation has been updated accordingly.
• All tests pass locally.
• The PR description follows the project's guidelines.

[coveralls]

Pull Request Test Coverage Report for Build 19527674890

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.02%) to 86.552%

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Totals
Change from base Build 19427516711:	0.02%
Covered Lines:	10710
Relevant Lines:	12374

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💛 - Coveralls

[Igor-splunk]

Can we just upgrade to 1.25?