Framework: Disable PHPCS rule for snake case property

`providesContext` is a property of the block type which applies in both a server and browser context. Based on precedent (`styleVariations`, `textDomain`), it is optimized to use camel-case.

lib/compat.php

@@ -176,13 +176,15 @@ function gutenberg_provide_render_callback_with_block_object( $pre_render, $next
 		$_block_context['postId'] = $post->ID;
 	}
 
+	/* phpcs:disable WordPress.NamingConventions.ValidVariableName.UsedPropertyNotSnakeCase */
 	if ( ! empty( $block_type->providesContext ) && is_array( $block_type->providesContext ) ) {
 		foreach ( $block_type->providesContext as $context_name => $attribute_name ) {
 			if ( isset( $block['attrs'][ $attribute_name ] ) ) {
 				$_block_context[ $context_name ] = $block['attrs'][ $attribute_name ];
 			}
 		}
 	}
+	/* phpcs:enable */
 
 	foreach ( $block['innerContent'] as $chunk ) {
 		$block_content .= is_string( $chunk ) ?