[CI] Consolidate some tests (S) (#8206)

tests/components/scd4x/test.esp8266-ard.yaml

@@ -1,20 +1,5 @@
-i2c:
-  - id: i2c_scd4x
-    scl: 5
-    sda: 4
+substitutions:
+  scl_pin: GPIO5
+  sda_pin: GPIO4
 
-sensor:
-  - platform: scd4x
-    id: scd40
-    co2:
-      name: SCD4X CO2
-    temperature:
-      id: scd4x_temperature
-      name: SCD4X Temperature
-    humidity:
-      name: SCD4X Humidity
-    automatic_self_calibration: true
-    altitude_compensation: 10m
-    ambient_pressure_compensation: 961mBar
-    temperature_offset: 4.2C
-    update_interval: 15s
+<<: !include common.yaml