mesa/version: Update gl_extensions::Version during version override
mesa/version: Update gl_extensions::Version during version override

Commit a16ffb743ced9fde80b2485dfc2d86ae74e86f25, which introduced
gl_extensions::Version, updates the field when the context version
is computed and when entering/exiting meta. Update this field when
the version is overridden as well.

Cc: "11.1" <59f39c0db42d4479a46b02d4d2bc11120e37bb44@lists.freedesktop.org>
Signed-off-by: Nanley Chery <d78cd5d33e98a5581566f188959f731bd0b1c0fd@intel.com>
Reviewed-by: Marta Lofstedt <d284b1e5d144aa8ffd9d3937a966cb84599af26e@intel.com>

metora/MesaGLSLCompiler,metora/MesaGLSLCompiler,metora/MesaGLSLCompiler