[CI] Introduce testing for IDF 5 (and other arbitrary framework versions) (#6802)

* Initial changes to support testing of additional framework versions

* Rename Arduino test files

tests/components/sun_gtil2/test.rp2040-ard.yaml

@@ -0,0 +1,44 @@
+uart:
+  - id: control_to_display
+    rx_pin:
+      number: 5
+    baud_rate: 9600
+
+sun_gtil2:
+  uart_id: control_to_display
+
+sensor:
+  - platform: sun_gtil2
+    temperature:
+      id: gtil_temperature
+      name: "Heatsink Temperature"
+      filters:
+        - throttle_average: 30s
+    dc_voltage:
+      id: gtil_dc_voltage
+      name: "DC Voltage"
+      filters:
+        - throttle_average: 30s
+    ac_voltage:
+      id: gtil_ac_voltage
+      name: "AC Voltage"
+      filters:
+        - throttle_average: 30s
+    ac_power:
+      id: gtil_ac_power
+      name: "AC Power"
+    dc_power:
+      id: gtil_dc_power
+      name: "DC Power"
+    limiter_power:
+      id: gtil_limiter_power
+      internal: true
+
+text_sensor:
+  - platform: sun_gtil2
+    state:
+      id: gtil_state
+      name: "State"
+    serial_number:
+      id: gtil_serial_number
+      internal: true