panic for invalid field name

[sebhoss]

https://github.com/VictoriaMetrics/operator/blob/master/config/crd/bases/operator.victoriametrics.com_vmagents.yaml#L47 has a field name called - which causes kopium to panic. Stacktrace:

RUST_BACKTRACE=full kopium --docs --filename ./crd-catalog/VictoriaMetrics/operator/operator.victoriametrics.com/v1beta1/vmagents.yaml
// WARNING: generated by kopium - manual changes will be overwritten
// kopium command: kopium --docs --filename ./crd-catalog/VictoriaMetrics/operator/operator.victoriametrics.com/v1beta1/vmagents.yaml
// kopium version: 0.16.1

thread 'main' panicked at src/output.rs:99:40:
invalid field name '-' could not be escaped
stack backtrace:
   0:     0x561eeeef8e6c - <unknown>
   1:     0x561eeef27bfc - <unknown>
   2:     0x561eeeef545e - <unknown>
   3:     0x561eeeef8c54 - <unknown>
   4:     0x561eeeefab93 - <unknown>
   5:     0x561eeeefa8ac - <unknown>
   6:     0x561eeeefb119 - <unknown>
   7:     0x561eeeefb017 - <unknown>
   8:     0x561eeeef9396 - <unknown>
   9:     0x561eeeefad62 - <unknown>
  10:     0x561eeea8c793 - <unknown>
  11:     0x561eeee4d148 - <unknown>
  12:     0x561eeee4d790 - <unknown>
  13:     0x561eeead34c8 - <unknown>
  14:     0x561eeeacfb38 - <unknown>
  15:     0x561eeeb3348f - <unknown>
  16:     0x561eeeb03bd3 - <unknown>
  17:     0x561eeeb3c40d - <unknown>
  18:     0x561eeeeee60b - <unknown>
  19:     0x561eeeb336d5 - <unknown>
  20:     0x7fa2ca9ceb8a - __libc_start_call_main
  21:     0x7fa2ca9cec4b - __libc_start_main_alias_2
  22:     0x561eeea8ce1e - <unknown>
  23:                0x0 - <unknown>

[clux]

Thanks for the report with an easy repro. A fix can be found in #167 - will likely release that next week modulo reviews.