[Actions][Linux] Add more extensions to be built, fix all compile warnings and errors

[VeithMetro]

No description provided.

[Copilot]

Pull request overview

This PR fixes compilation warnings and errors in Linux builds by addressing multiple issues across the codebase: correcting a typo in an enum value, replacing non-standard function identifiers with C99 standard equivalents, fixing buffer overflow vulnerabilities in string operations, correcting return types, and properly suppressing unavoidable compiler warnings.

Key Changes:

• Fixed spelling of "HIBERNATE" enum value in controller interface
• Replaced __FUNCTION__ with C99 standard __func__ in logging macros
• Fixed buffer overflow vulnerabilities in strncpy calls with proper null-termination
• Corrected return type inconsistencies and added proper unused parameter attributes
• Added missing header includes and warning suppressions

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated no comments.

File	Description
Source/plugins/IController.h	Corrected spelling of HIBERNATE enum value from HIBERBATE
Source/extensions/privilegedrequest/include/privilegedrequest/PrivilegedRequest.h	Added warning suppression for mkstemp unused result
Source/extensions/hibernate/common/Log.h	Replaced FUNCTION with C99 standard func
Source/extensions/hibernate/checkpointserver/CheckpointServer.c	Fixed multiple warnings: added errno.h, fixed strncpy buffer overflows, corrected return types, removed unused variables, fixed error format strings, and marked unused parameters

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