[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/rdm6300/test.esp8266-ard.yaml

@@ -0,0 +1,12 @@
+uart:
+  - id: uart_rdm6300
+    tx_pin: 4
+    rx_pin: 5
+    baud_rate: 115200
+
+rdm6300:
+
+binary_sensor:
+  - platform: rdm6300
+    uid: 7616525
+    name: RDM6300 NFC Tag