Add steps to update testnet2 deployments (#38)

Part of [Create a public laconicd testnet](https://www.notion.so/Create-a-public-laconicd-testnet-896a11bdd8094eff8f1b49c0be0ca3b8)

Added steps to update deployments:
- stage2 laconicd
- laconic-console-testnet2
- laconic-shopify
- fixturenet-eth
- Nitro bridge
- Nitro nodes
- Snowball backend
- Snowball frontend

Co-authored-by: Adw8 <adwaitgharpure@gmail.com>
Reviewed-on: cerc-io/testnet-laconicd-stack#38
Co-authored-by: Prathamesh Musale <prathamesh.musale0@gmail.com>
Co-committed-by: Prathamesh Musale <prathamesh.musale0@gmail.com>

stack-orchestrator/stacks/laconic-console/stack.yml

@@ -2,8 +2,8 @@ version: "1.0"
 name: laconic-console
 description: "Laconic registry CLI and console"
 repos:
-  - git.vdb.to/cerc-io/laconic-registry-cli
-  - git.vdb.to/cerc-io/laconic-console
+  - git.vdb.to/cerc-io/laconic-registry-cli@v0.2.10
+  - git.vdb.to/cerc-io/laconic-console@v0.2.5
 containers:
   - cerc/laconic-registry-cli
   - cerc/webapp-base

stack-orchestrator/stacks/laconic-shopify/stack.yml

@@ -2,8 +2,8 @@ version: "1.0"
 name: laconic-shopify
 description: "Service that integrates a Shopify app with the Laconic wallet."
 repos:
-  - git.vdb.to/cerc-io/shopify
-  - git.vdb.to/cerc-io/laconic-faucet@shopify
+  - git.vdb.to/cerc-io/shopify@v0.1.0
+  - git.vdb.to/cerc-io/laconic-faucet@v0.1.0-shopify
 containers:
   - cerc/laconic-shopify
   - cerc/laconic-shopify-faucet

stack-orchestrator/stacks/testnet-laconicd/stack.yml

@@ -2,7 +2,7 @@ version: "1.0"
 name: testnet-laconicd
 description: "Laconicd full node"
 repos:
-  - git.vdb.to/cerc-io/laconicd
+  - git.vdb.to/cerc-io/laconicd@v0.1.9
 containers:
   - cerc/laconicd
 pods: