Pin Ace* libraries at last compatible version in CI workflow

Due to incompatibilities introduced during the initial ArduinoCore-API incorporation, the author of the AceTime and AceCommon libraries has added an #error directive that is triggered when the libraries are compiled by any version of arduino;samd that uses ArduinoCore-API:

- https://github.com/bxparks/AceTime/blob/v1.6/src/AceTime.h#L25-L26
- https://github.com/bxparks/AceCommon/blob/v1.4.3/src/AceCommon.h#L44-L45

Ironically, compilation of the AceTime examples was added specifically to avoid any future breakage of compatibility with that library. Now the shoe is on the other foot.

Author: per1234

.github/workflows/compile-examples.yml

@@ -248,7 +248,8 @@ jobs:
             - name: LoRa
             - name: MKRWAN
             - name: WiFiNINA
-            - name: AceTime
+            - name: AceTime@1.4.1
+            - name: AceCommon@1.3.1
             - source-url: https://github.com/vidor-libraries/VidorPeripherals.git
           platforms: |
             # Use Board Manager to install the latest release of Arduino SAMD Boards to get the toolchain