Pinned 63f1e18 CLI.

Ref: arduino/arduino-cli@63f1e18
Signed-off-by: Akos Kitta <a.kitta@arduino.cc>

Author: Akos Kitta

arduino-ide-extension/package.json

@@ -163,7 +163,7 @@
       "version": {
         "owner": "arduino",
         "repo": "arduino-cli",
-        "commitish": "test_1"
+        "commitish": "63f1e18"
       }
     },
     "fwuploader": {