cli: log response status in proxy

[dirkdev98]

Closes #488

[github-actions]

==== Benchmark result ====

Node.js version: 14

Total benchmarks: 13
          Passed: 13
          Failed: 0
-----------
lbu validator simple                    2000000  iterations      576  ns/op
yup validator simple                      20000  iterations    86238  ns/op
fastest-validator validator simple     10000000  iterations      141  ns/op
lbu validator nested                      50000  iterations    54634  ns/op
yup validator nested                       2000  iterations   593934  ns/op
fastest-validator validator nested      1000000  iterations     1031  ns/op
logger - strings                         500000  iterations     2567  ns/op
logger - objects                         500000  iterations     3085  ns/op
logger - deep objects                    200000  iterations     5405  ns/op
uuid                                    2000000  iterations      654  ns/op
uuid.isValid                           10000000  iterations      152  ns/op
isNil                                 500000000  iterations        0  ns/op
isPlainObject                          50000000  iterations       20  ns/op

[github-actions]

==== C8 test coverage ====
Statements: 70.19% ( 18372/26173 )
Branches : 71.87% ( 2174 /3025 )
Functions : 70.33% ( 678 /964 )
Lines : 70.19% ( 18372 /26173 )

[github-actions]

==== Benchmark result ====

Node.js version: 15

Total benchmarks: 13
          Passed: 13
          Failed: 0
-----------
lbu validator simple                    5000000  iterations      472  ns/op
yup validator simple                      20000  iterations    61134  ns/op
fastest-validator validator simple     10000000  iterations      136  ns/op
lbu validator nested                      50000  iterations    49633  ns/op
yup validator nested                       5000  iterations   408873  ns/op
fastest-validator validator nested      2000000  iterations      876  ns/op
logger - strings                         500000  iterations     2265  ns/op
logger - objects                         500000  iterations     2710  ns/op
logger - deep objects                    500000  iterations     4281  ns/op
uuid                                    2000000  iterations      630  ns/op
uuid.isValid                           10000000  iterations      165  ns/op
isNil                                 500000000  iterations        0  ns/op
isPlainObject                         100000000  iterations       19  ns/op