test: add boltz fundingsource to regtest (#3677)

Co-authored-by: Vlad Stan <stan.v.vlad@gmail.com>

.github/workflows/regtest.yml

@@ -40,8 +40,8 @@ jobs:
         run: |
           git clone https://github.com/lnbits/legend-regtest-enviroment.git docker
           cd docker
-          chmod +x ./tests
-          ./tests
+          chmod +x ./start-regtest
+          ./start-regtest
           sudo chmod -R a+rwx .
 
       - name: Run pytest
@@ -63,6 +63,8 @@ jobs:
           LNBITS_ENDPOINT: http://localhost:5001
           LNBITS_KEY: "d08a3313322a4514af75d488bcc27eee"
           ECLAIR_URL: http://127.0.0.1:8082
+          BOLTZ_CLIENT_ENDPOINT: 127.0.0.1:9002
+          BOLTZ_MNEMONIC: abandon abandon abandon abandon abandon abandon abandon abandon abandon abandon abandon about
           LNBITS_MAX_OUTGOING_PAYMENT_AMOUNT_SATS: 1000000000
           LNBITS_MAX_INCOMING_PAYMENT_AMOUNT_SATS: 1000000000
           ECLAIR_PASS: lnbits