arb_gpu_shader_fp64: GSLSL1.50 is required per the spec
https://www.khronos.org/registry/OpenGL/extensions/ARB/ARB_gpu_shader_fp64.txt says:
OpenGL 3.2 and GLSL 1.50 are required.
Fix the incorrect requirements for these 3 shaders to match the spec and the rest of the tests. Fixes these tests on Mesa on Windows, where GLSL1.4 == GL3.1, which defaults to a compat context instead of a core context. In compat GLSL 1.40 shaders, the Mesa GLSL compiler rejects this extension.