Some codes failed `-Werror=float-equal` compiler flag, please fix it.

[jymchng]

Example error message.

/root/c_projects/c_template_two/build/coverage/_deps/unity-src/src/unity.c: In function ‘UnityPrintFloat’:
/root/c_projects/c_template_two/build/coverage/_deps/unity-src/src/unity.c:355:16: error: comparing floating-point with ‘==’ or ‘!=’ is unsafe [-Werror=float-equal]
  355 |     if (number == 0.0f)
      |                ^~
/root/c_projects/c_template_two/build/coverage/_deps/unity-src/src/unity.c:422:52: error: comparing floating-point with ‘==’ or ‘!=’ is unsafe [-Werror=float-equal]
  422 |         if ((n & 1) && (((UNITY_DOUBLE)n - number) == 0.5f))
      |                                                    ^~