Make buttons uppercase in Rubik + Tilda variation.

assembler/styles/typography/17-rubik-tilda.json

@@ -62,6 +62,7 @@
 					"fontFamily": "var(--wp--preset--font-family--tilda-sans)",
 					"fontWeight": "400",
 					"fontSize": "16px",
+					"textTransform": "uppercase",
 					"letterSpacing": "2px"
 				}
 			},