Merge pull request #105 from postgrespro/fix_sampling_frequency

Fix sampling frequency

Small formatting fixes

Merge pull request #100 from valeriy-zainullin/master

Check that collector has started in pg_wait_sampling_reset_profile.

Remove units from profile_period and history_period

Fix README to mention support of pg13+

Merge remote-tracking branch 'origin/PGPRO-8877'

Conflicts:
	compat.h

Caused by:
- 22212ba (PGPRO-8877)
  PostgreSQL 17 support.
- ed9f977 (master)
  Drop support for Postgres < 12

Release v1.1.5

PostgreSQL 16 support.

tagging pg-wait-sampling 1.1.4-2

Release v1.1.4

tagging pg-wait-sampling 1.1.4-1