[CI] Consolidate some tests (T) (#8208)

tests/components/tm1621/test.esp32-c3-ard.yaml

@@ -1,12 +1,7 @@
-display:
-  - platform: tm1621
-    id: tm1621_display
-    cs_pin: 7
-    data_pin: 4
-    read_pin: 5
-    write_pin: 6
-    lambda: |-
-      it.printf(0, "%.1f", 20.0);
-      it.display_celsius(true);
-      it.printf(1, "%.1f", 20.0);
-      it.display_humidity(true);
+substitutions:
+  cs_pin: GPIO6
+  data_pin: GPIO7
+  read_pin: GPIO2
+  write_pin: GPIO3
+
+<<: !include common.yaml