deploy: add api keys to environment (#56)

Add pikespeak and posthog api keys to environment variables accessible
by the deploy script.

.github/workflows/deploy-web4-contract.yml

@@ -21,6 +21,10 @@ jobs:
         uses: actions/checkout@v4
       - name: Install cargo-near CLI
         run: curl --proto '=https' --tlsv1.2 -LsSf https://github.com/near/cargo-near/releases/latest/download/cargo-near-installer.sh | sh
+      - name: Set up Pikespeak API key
+        run: echo "PIKESPEAK_API_KEY=${{ secrets.PIKESPEAK_API_KEY }}" >> $GITHUB_ENV
+      - name: Set up PostHog API key
+        run: echo "POSTHOG_API_KEY=${{ secrets.POSTHOG_API_KEY }}" >> $GITHUB_ENV
       - name: Deploy to ${{ matrix.environment }}
         run: |
           cargo near deploy --no-docker "${{ vars.NEAR_TREASURY_WEB4_ACCOUNT_ID }}" \