Migrate to shared-actions v2

> [!IMPORTANT]
> **Please thoroughly review this PR before approving and merging**
> This migration is complicated and may require some manual changes. Below we will call out breaking changes and other important notes.

This PR moves all workflows to the new shared-actions v2. Please check out the following docs for more information on this migration:
- [Migration Guide](https://docs.devops.figure.com/shared-actions/v2-migration-guide)
- [Migration Changes](https://docs.devops.figure.com/shared-actions/v2-migration-changes)

Please reach out to [#github-actions-help](https://figure-group.slack.com/archives/C044W9BRAVD) with any and all questions, someone from devops or core tech will be able to help.

---

### Notes
- Once you've merged in this PR and are running `v2` actions it is worth watching your workflows for warnings about inputs that are no longer used. We are able to handle a lot of replacements automatically, but we err on the side of caution to avoid breaking other github actions that we don't own. These warnings won't ever break your builds, but it is good practice to keep them clean.
- Some other common upgrades are also done in this PR, like updating other `actions/` to their latest versions.

🤖🪄 This PR was automatically created by a magic script.

.github/workflows/build-and-publish.yml

@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
 
       - name: Get Version
         run: |
@@ -58,7 +58,7 @@ jobs:
         if: github.event_name == 'release'
 
       - name: Upload server Artifact
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v4
         with:
           name: server
           path: server/build/libs/*.jar
@@ -71,7 +71,7 @@ jobs:
     if: github.event_name == 'release'
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
 
       - name: Get Version
         run: |
@@ -108,27 +108,27 @@ jobs:
 
       - name: Set up Docker Buildx
         id: buildx
-        uses: docker/setup-buildx-action@v1
+        uses: docker/setup-buildx-action@v3
         with:
           install: true
 
       - name: Available platforms
         run: echo ${{ steps.qemu.outputs.platforms }}
 
       - name: Download Artifact
-        uses: actions/download-artifact@v2
+        uses: actions/download-artifact@v4
         with:
           name: server
           path: server/build/libs
 
       - name: Log into DockerHub
-        uses: docker/login-action@v2
+        uses: docker/login-action@v3
         with:
           username: ${{ secrets.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_TOKEN }}
 
       - name: Build and push
-        uses: docker/build-push-action@v3
+        uses: docker/build-push-action@v6
         with:
           context: server
           file: server/docker/Dockerfile