Potential Vulnerability in Cloned Code

[ivanaclairineirsan]

This PR fixes a potential security vulnerability in function stbi__process_frame_header that was cloned from https://github.com/nothings/stb but did not receive the security patch.

###Details: Affected Function: stbi__process_frame_header in file thirdparty/stb_image.hstb_image.h Original Fix: https://github.com/nothings/stb/commit/5ba0baaa269b3fd681828e0e3b3ac0f1472eaf40

###What this PR does: This PR applies the same security patch that was applied to the original repository to eliminate the potential vulnerability in the cloned code.

###References: https://github.com/nothings/stb/commit/5ba0baaa269b3fd681828e0e3b3ac0f1472eaf40 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2021-28021

Please review and merge this PR to ensure your repository is protected against this potential vulnerability.