fix: allow docker/dfx/lib in deployment rsync

Changed rsync exclusion from '**/lib' to specifically exclude only
Solidity/Foundry lib directories:
- examples/**/contracts/lib
- examples/**/ethereum/lib

This allows docker/dfx/lib (shell script libraries) to be synced
to the deployment server.

Author: domwoe

.github/workflows/deploy.yml

@@ -53,7 +53,8 @@ jobs:
               --exclude '**/out' \
               --exclude '**/cache' \
               --exclude '**/broadcast' \
-              --exclude '**/lib' \
+              --exclude 'examples/**/contracts/lib' \
+              --exclude 'examples/**/ethereum/lib' \
               ./ ${{ vars.DEPLOY_USER }}@${{ vars.DEPLOY_HOST }}:${{ env.DEPLOY_PATH }}/
 
         - name: Create/overwrite .env from secret