feat: add additional global configs

[woehrl01]

Description

Adds the following config options to the config generator:

see: https://prometheus.io/docs/prometheus/latest/configuration/configuration/

  # An uncompressed response body larger than this many bytes will cause the
  # scrape to fail. 0 means no limit. Example: 100MB.
  # This is an experimental feature, this behaviour could
  # change or be removed in the future.
  [ body_size_limit: [<size>](https://prometheus.io/docs/prometheus/latest/configuration/configuration/#size) | default = 0 ]

  # Per-scrape limit on number of scraped samples that will be accepted.
  # If more than this number of samples are present after metric relabeling
  # the entire scrape will be treated as failed. 0 means no limit.
  [ sample_limit: [<int>](https://prometheus.io/docs/prometheus/latest/configuration/configuration/#int) | default = 0 ]

  # Per-scrape limit on number of labels that will be accepted for a sample. If
  # more than this number of labels are present post metric-relabeling, the
  # entire scrape will be treated as failed. 0 means no limit.
  [ label_limit: [<int>](https://prometheus.io/docs/prometheus/latest/configuration/configuration/#int) | default = 0 ]

  # Per-scrape limit on length of labels name that will be accepted for a sample.
  # If a label name is longer than this number post metric-relabeling, the entire
  # scrape will be treated as failed. 0 means no limit.
  [ label_name_length_limit: [<int>](https://prometheus.io/docs/prometheus/latest/configuration/configuration/#int) | default = 0 ]

  # Per-scrape limit on length of labels value that will be accepted for a sample.
  # If a label value is longer than this number post metric-relabeling, the
  # entire scrape will be treated as failed. 0 means no limit.
  [ label_value_length_limit: [<int>](https://prometheus.io/docs/prometheus/latest/configuration/configuration/#int) | default = 0 ]

  # Limit per scrape config on the number of targets dropped by relabeling
  # that will be kept in memory. 0 means no limit.
  [ keep_dropped_targets: [<int>](https://prometheus.io/docs/prometheus/latest/configuration/configuration/#int) | default = 0 ]

Type of change

• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• New feature / enhancement (non-breaking change which adds functionality)
• Security fix
• Bug fix (non-breaking change which fixes an issue)

Checklist:

• Add changelog entry following the contributing guide
• Documentation has been updated
• This change requires changes in testing:
  • unit tests
  • E2E tests

[woehrl01]

@dbudziwojskiNR any updates on getting this merged? Thank you!