Remove PhotonJNICommon in favor of CombinedRuntimeLoader (#2223)

## Description

PhotonJNICommon is just our implementation of combined runtime loader,
which we don't really need. This removes it and just uses
CombinedRuntimeLoader directly. This also fixes the issues introduced in
#2219, which lead to some of our JNIs not loading.

## Meta

Merge checklist:
- [x] Pull Request title is [short, imperative
summary](https://cbea.ms/git-commit/) of proposed changes
- [x] The description documents the _what_ and _why_
- [ ] If this PR changes behavior or adds a feature, user documentation
is updated
- [ ] If this PR touches photon-serde, all messages have been
regenerated and hashes have not changed unexpectedly
- [ ] If this PR touches configuration, this is backwards compatible
with settings back to v2025.3.2
- [ ] If this PR touches pipeline settings or anything related to data
exchange, the frontend typing is updated
- [x] If this PR addresses a bug, a regression test for it is added

---------

Co-authored-by: Matt M <matthew.morley.ca@gmail.com>

.github/workflows/build.yml

@@ -416,35 +416,31 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          - os: ubuntu-24.04
-            artifact-name: LinuxArm64
-            image_suffix: RaspberryPi
+          - image_suffix: RaspberryPi
             image_url: https://github.com/PhotonVision/photon-image-modifier/releases/download/$IMAGE_VERSION/photonvision_raspi.img.xz
-            cpu: cortex-a7
-            image_additional_mb: 0
-            extraOpts: -Djdk.lang.Process.launchMechanism=vfork
+          - image_suffix: rubikpi3
+            image_url: https://github.com/PhotonVision/photon-image-modifier/releases/download/$IMAGE_VERSION/photonvision_rubikpi3.tar.xz
+            root_location: 'offset=569376768'
+          - image_suffix: orangepi5
+            image_url: https://github.com/PhotonVision/photon-image-modifier/releases/download/$IMAGE_VERSION/photonvision_opi5.img.xz
 
-    runs-on: ${{ matrix.os }}
+    runs-on: ubuntu-24.04-arm
     name: smoketest-${{ matrix.image_suffix }}
 
     steps:
       - uses: actions/download-artifact@v4
         with:
-          name: jar-${{ matrix.artifact-name }}
+          name: jar-LinuxArm64
 
-      - uses: pguyot/arm-runner-action@v2
+      - uses: photonvision/photon-image-runner@HEAD
         name: Run photon smoketest
         id: generate_image
         with:
-          base_image: ${{ matrix.image_url }}
-          image_additional_mb: ${{ matrix.image_additional_mb }}
-          optimize_image: yes
-          cpu: ${{ matrix.cpu }}
-          # We do _not_ wanna copy photon into the image. Bind mount instead
-          bind_mount_repository: true
+          image_url: ${{ matrix.image_url }}
+          root_location: ${{ matrix.root_location || 'partition=2' }}
           # our image better have java installed already
           commands: |
-            java -jar ${{ matrix.extraOpts }} *.jar --smoketest
+            java -jar *.jar --smoketest
 
   build-image:
     needs: [build-package]