fix: implement CD for boltz mainnet

.github/workflows/deploy.boltz.mainnet.yml

@@ -0,0 +1,36 @@
+---
+name: CD for Boltz Mainnet
+
+on:
+  push:
+    tags:
+      - '**stable-boltzmainnet**'
+
+jobs:
+  deploy-boltz-mainnet:
+    runs-on: ubuntu-latest
+      environment:
+        name: Boltz-Mainnet
+			permissions:
+				id-token: write
+				contents: read
+
+		steps:
+			- name: Checkout
+				uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
+
+			- name: Configure AWS credentials
+				uses: aws-actions/configure-aws-credentials@e3dd6a429d7300a6a4c196c26e071d42e0343502 # v4.0.2
+				with:
+					role-to-assume: ${{ secrets.BOLTZ_MAINNET_ROLE_ARN }}
+					aws-region: "${{ secrets.BOLTZ_MAINNET_AWS_REGION }}"
+
+				- name: Deploy rif-relay-server on Boltz Mainnet
+					run: |
+						aws ssm send-command \
+								--document-name "boltz-mainnet-deploy" \
+								--instance-ids "$INSTANCE_ID" \
+								--document-version '$LATEST'
+						echo "Deploy sent to EC2 instance"
+				env:
+						INSTANCE_ID: ${{ secrets.BOLTZ_MAINNET_INSTANCE_ID }}