feat: handle grant spent amount calculation on payment completion

[BlairCurrey]

resolves https://linear.app/interledger/issue/RAF-1036/use-outgoingpaymentgrantspentamounts-table-during-outgoing-payment

[github-actions]

🚀 Performance Test Results

Test Configuration:

• VUs: 4
• Duration: 1m0s

Test Metrics:

• Requests/s: 43.67
• Iterations/s: 14.57
• Failed Requests: 0.00% (0 of 2628)

📜 Logs

> performance@1.0.0 run-tests:testenv /home/runner/work/rafiki/rafiki/test/performance
> ./scripts/run-tests.sh -e test "-k" "-q" "--vus" "4" "--duration" "1m"

Cloud Nine GraphQL API is up: http://localhost:3101/graphql
Cloud Nine Wallet Address is up: http://localhost:3100/
Happy Life Bank Address is up: http://localhost:4100/
cloud-nine-wallet-test-backend already set
cloud-nine-wallet-test-auth already set
happy-life-bank-test-backend already set
happy-life-bank-test-auth already set
     data_received..................: 916 kB 15 kB/s
     data_sent......................: 1.9 MB 31 kB/s
     http_req_blocked...............: avg=7.1µs    min=1.78µs   med=5.48µs   max=1.02ms   p(90)=6.56µs   p(95)=7.19µs  
     http_req_connecting............: avg=694ns    min=0s       med=0s       max=971.58µs p(90)=0s       p(95)=0s      
     http_req_duration..............: avg=90.9ms   min=11.56ms  med=76.51ms  max=586.23ms p(90)=155.69ms p(95)=181.69ms
       { expected_response:true }...: avg=90.9ms   min=11.56ms  med=76.51ms  max=586.23ms p(90)=155.69ms p(95)=181.69ms
     http_req_failed................: 0.00%  ✓ 0         ✗ 2628
     http_req_receiving.............: avg=91.2µs   min=26.5µs   med=79.53µs  max=1.42ms   p(90)=117.62µs p(95)=148.75µs
     http_req_sending...............: avg=35.51µs  min=9.16µs   med=28.62µs  max=1.63ms   p(90)=41.16µs  p(95)=58.19µs 
     http_req_tls_handshaking.......: avg=0s       min=0s       med=0s       max=0s       p(90)=0s       p(95)=0s      
     http_req_waiting...............: avg=90.77ms  min=11.44ms  med=76.24ms  max=586.15ms p(90)=155.6ms  p(95)=181.6ms 
     http_reqs......................: 2628   43.670077/s
     iteration_duration.............: avg=274.05ms min=179.02ms med=258.51ms max=1.19s    p(90)=337.16ms p(95)=360.69ms
     iterations.....................: 877    14.573309/s
     vus............................: 4      min=4       max=4 
     vus_max........................: 4      min=4       max=4 

[mkurapov]

If we return the sent/debit amount from the payment method, we can avoid this call to the accounting DB