Fix GitHub workflow (#1075)

### Summary
My previous PR's GitHub action does not save the binary properly for dev
board. I didn't notice until I merged my previous PR to the master and
fail the DBC-release. This PR is to fix that.
### Changelist 
`.github/workflows`

### Testing Done
running the action

### Resolved Issues
about

### Checklist
*Please change `[ ]` to `[x]` when you are ready.*
- [x] I have read and followed the code conventions detailed in
[README.md](../README.md) (*This will save time for both you and the
reviewer!*).
- [x] If this pull request is longer then **500** lines, I have provided
*explicit* justification in the summary above explaining why I *cannot*
break this up into multiple pull requests (*Small PR's are faster and
less painful for everyone involved!*).

.github/workflows/master_cd.yml

@@ -14,13 +14,19 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        board:
-          - FSM
-          - PDM
-          - BMS
-          - DCM
-          - DIM
-          - f4dev
+        include:
+          - board: DIM
+            build_dir: firmware/thruna/DIM/DIM.elf
+          - board: FSM
+            build_dir: firmware/thruna/FSM/FSM.elf
+          - board: PDM
+            build_dir: firmware/thruna/PDM/PDM.elf
+          - board: DCM
+            build_dir: firmware/thruna/DCM/DCM.elf
+          - board: BMS
+            build_dir: firmware/thruna/BMS/BMS.elf
+          - board: f4dev
+            build_dir: firmware/dev/f4dev/f4dev.elf
     container:
       image: ubcformulaelectric/environment:latest
       credentials:
@@ -37,9 +43,11 @@ jobs:
       # Uploads .elf binary to Github Actions workflow
       - name: Save built artifact
         uses: actions/upload-artifact@v3
+        env:
+          BUILD_DIR: build_fw_deploy
         with:
           name: ${{ matrix.board }}.elf
-          path: ${{ env.BUILD_DIR }}/firmware/thruna/${{ matrix.board }}/${{ inputs.board }}.elf
+          path: ${{ env.BUILD_DIR }}/${{ matrix.build_dir }}
 
   generate-dbc:
     name: Call DBC Generation