(PA-5640) Fix ruybgem-ffi runtime logic

Our logic is incorrect, previously we were looking at `settings[:runtime_project]`.
In agent-runtime context that will always just return 'agent', not the full project
name we were looking for.
This lead to having the PL build tools path added earlier then we want and an older
GCC being used that breaks rubygem-ffi from building.

configs/components/rubygem-ffi.rb

@@ -68,7 +68,7 @@
   if platform.is_cross_compiled_linux?
     pkg.environment "PATH", "/opt/pl-build-tools/bin:$(PATH)"
   elsif platform.is_solaris?
-    if settings[:runtime_project] == 'agent-runtime-main'
+    if settings[:ruby_version] =~ /3\.\d+\.\d+/
       pkg.environment "PATH", "/opt/csw/bin:/opt/pl-build-tools/bin:$(PATH)"
     else
       pkg.environment "PATH", "/opt/pl-build-tools/bin:/opt/csw/bin:$(PATH)"