[rlgl] use GLint64 for glGetBufferParameteri64v (#4197)

src/rlgl.h

@@ -4397,7 +4397,7 @@ void rlUpdateShaderBuffer(unsigned int id, const void *data, unsigned int dataSi
 // Get SSBO buffer size
 unsigned int rlGetShaderBufferSize(unsigned int id)
 {
-    long long size = 0;
+    GLint64 size = 0;
 
 #if defined(GRAPHICS_API_OPENGL_43)
     glBindBuffer(GL_SHADER_STORAGE_BUFFER, id);