2023-04-09 Node-RED pin serial node - master branch - PR 1 of 3

Pins `node-red-node-serialport` to version `0.15.0`. This seems to be
the only version that works with current Node-RED (3.0.2).

Test case showing version `0.15.0` working included with SensorsIot#681. Also
includes links to related issues on other repositories which led to
this solution.

Fixes SensorsIot#681.

Signed-off-by: Phill Kelley <34226495+Paraphraser@users.noreply.github.com>

.templates/nodered/addons.yml

@@ -23,7 +23,7 @@ addons:
     - "node-red-node-smooth"
     - "node-red-node-darksky"
     - "node-red-node-sqlite"
-    - "node-red-node-serialport"
+    - "node-red-node-serialport@0.15.0"
     - "node-red-contrib-config"
     - "node-red-contrib-grove"
     - "node-red-contrib-diode"