fix(ci): install prerequisites on Gitea runners

.gitea/workflows/supply-chain.yml

@@ -35,6 +35,10 @@ jobs:
         uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7
         with:
           persist-credentials: false
+      - name: Install Rust toolchain
+        uses: actions-rust-lang/setup-rust-toolchain@ecabd13d1c56bd1345c230e542e9144811ad706f # v2
+        with:
+          cache: false
       - name: Install cargo-deny
         run: cargo install cargo-deny --version "${CARGO_DENY_VERSION}" --locked
       - name: Run cargo-deny
@@ -49,6 +53,12 @@ jobs:
         uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7
         with:
           persist-credentials: false
+      - name: Install Go toolchain
+        uses: actions/setup-go@924ae3a1cded613372ab5595356fb5720e22ba16 # v6
+        with:
+          go-version: stable
+          cache: false
+          token: ''
       - name: Install actionlint
         run: go install "github.com/rhysd/actionlint/cmd/actionlint@v${ACTIONLINT_VERSION}"
       - name: Check workflow syntax