Use forked sorition pools in testnet deployment

We want to modify sortiion pools used in test environment to make
joining applications easier for operators. With the changes from forked
sortition pools we will not require sortition pool to be unlocked when
operator wants to join. Even in case the DKG process is in progress we
will let operators to join.

This is just a temporary change that should be reverted in the near
future.

Refs keep-network/sortition-pools#186

.github/workflows/contracts-ecdsa.yml

@@ -204,11 +204,19 @@ jobs:
             @keep-network/random-beacon@${{ steps.upstream-builds-query.outputs.random-beacon-version }} \
             @keep-network/sortition-pools
 
+      # TODO: Remove this step. We replace sortition pools for deployment on testnet
+      # with forked contracts that were tweaked to make operators joining the pool
+      # easier. This should never be used outside of the test environment. On
+      # test environment it should be used temporarily only.
+      - name: Use Sortition Pool forked contracts
+        run: |
+          yarn upgrade github:keep-network/sortition-pools#test-fork
+
       - name: Configure tenderly
         env:
           TENDERLY_TOKEN: ${{ secrets.TENDERLY_TOKEN }}
         run: ./config_tenderly.sh
-      
+
       - name: Deploy contracts
         env:
           CHAIN_API_URL: ${{ secrets.GOERLI_ETH_HOSTNAME_HTTP }}

.github/workflows/contracts-random-beacon.yml

@@ -200,11 +200,19 @@ jobs:
             @threshold-network/solidity-contracts@${{ steps.upstream-builds-query.outputs.threshold-contracts-version }} \
             @keep-network/sortition-pools
 
+      # TODO: Remove this step. We replace sortition pools for deployment on testnet
+      # with forked contracts that were tweaked to make operators joining the pool
+      # easier. This should never be used outside of the test environment. On
+      # test environment it should be used temporarily only.
+      - name: Use Sortition Pool forked contracts
+        run: |
+          yarn upgrade github:keep-network/sortition-pools#test-fork
+
       - name: Configure tenderly
         env:
           TENDERLY_TOKEN: ${{ secrets.TENDERLY_TOKEN }}
         run: ./config_tenderly.sh
-      
+
       - name: Deploy contracts
         env:
           CHAIN_API_URL: ${{ secrets.GOERLI_ETH_HOSTNAME_HTTP }}