Directly install protobuf-compiler without using an external action (#524)

* Directly install protobuf-compiler without using an external action

* Remove unused "github-token" input

.github/actions/test-dependencies/action.yml

@@ -2,11 +2,6 @@ name: test-dependencies
 description: Installs test dependencies for Serai
 
 inputs:
-  github-token:
-    description: "GitHub token to install Protobuf with"
-    require: true
-    default:
-
   monero-version:
     description: "Monero version to download and run as a regtest node"
     required: false
@@ -22,8 +17,6 @@ runs:
   steps:
     - name: Install Build Dependencies
       uses: ./.github/actions/build-dependencies
-      with:
-        github-token: ${{ inputs.github-token }}
 
     - name: Install Foundry
       uses: foundry-rs/foundry-toolchain@cb603ca0abb544f301eaed59ac0baf579aa6aecf