Include pico firmware in workflows (#234)

Fixes #233

Co-authored-by: Neil Enns <{ID}+{username}@users.noreply.github.com>

Author: neilenns

.github/workflows/ci.yml

@@ -9,24 +9,24 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
 
       - name: Cache pip
-        uses: actions/cache@v2
+        uses: actions/cache@v3
         with:
           path: ~/.cache/pip
           key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements.txt') }}
           restore-keys: |
             ${{ runner.os }}-pip-
 
       - name: Cache PlatformIO
-        uses: actions/cache@v2
+        uses: actions/cache@v3
         with:
           path: ~/.platformio
           key: ${{ runner.os }}-${{ hashFiles('**/lockfiles') }}
 
       - name: Set up Python
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v4
 
       - name: Install PlatformIO
         run: |
@@ -39,7 +39,9 @@ jobs:
         run: pio run
 
       - name: Archive production artifacts
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v3
         with:
           name: firmware
-          path: .pio/build/**/mobiflight*.hex
+          path: |
+            .pio/build/**/mobiflight*.hex
+            .pio/build/**/mobiflight*.uf2

.github/workflows/release.yml

@@ -9,23 +9,23 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - name: Cache pip
-        uses: actions/cache@v2
+        uses: actions/cache@v3
         with:
           path: ~/.cache/pip
           key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements.txt') }}
           restore-keys: |
             ${{ runner.os }}-pip-
 
       - name: Cache PlatformIO
-        uses: actions/cache@v2
+        uses: actions/cache@v3
         with:
           path: ~/.platformio
           key: ${{ runner.os }}-${{ hashFiles('**/lockfiles') }}
 
       - name: Set up Python
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v4
 
       - name: Install PlatformIO
         run: |
@@ -42,14 +42,18 @@ jobs:
         run: pio run
 
       - name: Archive production artifacts
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v3
         with:
           name: firmware
-          path: .pio/build/**/mobiflight*.hex
+          path: |
+            .pio/build/**/mobiflight*.hex
+            .pio/build/**/mobiflight*.uf2
 
       - name: Release
         uses: softprops/action-gh-release@v1
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         with:
-          files: .pio/build/**/mobiflight*.hex
+          files: |
+            .pio/build/**/mobiflight*.hex
+            .pio/build/**/mobiflight*.uf2