docs: add release notes for 11.0.8
docs: add release notes for 11.0.8

Signed-off-by: Emil Velikov <f20878473f414da183da19ee25c8722cc1d711e4@collabora.com>
(cherry picked from commit 261daab6b4f7a1cff143bebcd632ad5a2cdafa74)

metora/MesaGLSLCompiler,metora/MesaGLSLCompiler,metora/MesaGLSLCompiler