[Cherrypick] [PLUGIN-1953] Support for client credentials Grant type and bump up to 1.7.4-SNAPSHOT

[vikasrathee-cs]

[Cherrypick] PLUGIN-1953 Support for client credentials Grant type and bump up to 1.7.4-SNAPSHOT

Cherrypick CL #353

2nd Cherrypick : #357

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[gemini-code-assist]

Code Review

This pull request adds support for the 'client_credentials' OAuth grant type to Salesforce plugins, including updates to documentation, UI widgets, and validation logic. Key feedback involves refining the field description for clarity, making the security token optional for the password grant type to support IP whitelisting, and re-adding null checks for authentication fields in the format providers to avoid potential NullPointerExceptions.