Bump actions/upload-artifact from 4.4.3 to 4.6.0 (#54)

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 4.4.3 to 4.6.0.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v4.4.3...v4.6.0)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/push-master.yml

@@ -29,14 +29,14 @@ jobs:
         cmake ..
         cmake --build . --config Release
 
-    - uses: actions/upload-artifact@v4.4.3
+    - uses: actions/upload-artifact@v4.6.0
       name: Upload artifacts (commit)
       if: (startsWith(github.event.ref, 'refs/tags') != true)
       with:
         path: |
           firmware/*.uf2
 
-    - uses: actions/upload-artifact@v4.4.3
+    - uses: actions/upload-artifact@v4.6.0
       name: Upload artifacts (release)
       if: startsWith(github.ref, 'refs/tags/')
       with:
@@ -57,7 +57,7 @@ jobs:
         cmake --build .
         zip -j ../firmware/Adafruit_Feather_RP2040_Scorpio.zip ../firmware/*
 
-    - uses: actions/upload-artifact@v4.4.3
+    - uses: actions/upload-artifact@v4.6.0
       name: Upload artifacts (release Adafruit_Feather)
       if: startsWith(github.ref, 'refs/tags/')
       with:
@@ -78,7 +78,7 @@ jobs:
         rm ../firmware/*_Spi.uf2
         zip -j ../firmware/Adafruit_ItsyBitsy_2040.zip ../firmware/*
 
-    - uses: actions/upload-artifact@v4.4.3
+    - uses: actions/upload-artifact@v4.6.0
       name: Upload artifacts (release Adafruit_ItsyBitsy)
       if: startsWith(github.ref, 'refs/tags/')
       with:
@@ -99,7 +99,7 @@ jobs:
         rm ../firmware/*_Spi.uf2
         zip -j ../firmware/Pimoroni_Plasma_Stick_2040_W.zip ../firmware/*
 
-    - uses: actions/upload-artifact@v4.4.3
+    - uses: actions/upload-artifact@v4.6.0
       name: Upload artifacts (release Pimoroni_Plasma_Stick_W)
       if: startsWith(github.ref, 'refs/tags/')
       with:
@@ -120,7 +120,7 @@ jobs:
         cmake --build .
         zip -j ../firmware/Pimoroni_Plasma_2040.zip ../firmware/*
 
-    - uses: actions/upload-artifact@v4.4.3
+    - uses: actions/upload-artifact@v4.6.0
       name: Upload artifacts (release Pimoroni_Plasma)
       if: startsWith(github.ref, 'refs/tags/')
       with: