fix umount2 syscall flags type, add conversion helper function #185

	# NOTE: it is UNSAFE to run ANY kind of script when using the pull_request_target trigger!
	# DO NOT TOUCH THIS FILE UNLESS THE TRIGGER IS CHANGED.
	# See warning in https://docs.github.com/en/actions/using-workflows/events-that-trigger-workflows#pull_request_target.

	name: Driver SCHEMA_VERSION checks
	on:
	pull_request_target:
	paths:
	- 'driver/event_table.c'

	jobs:
	paths-filter:
	runs-on: ubuntu-latest
	outputs:
	driver_schema_changed: ${{ steps.filter.outputs.driver_schema }}
	steps:
	- uses: actions/checkout@v2
	- uses: dorny/paths-filter@v2
	id: filter
	with:
	filters: \|
	driver_schema:
	- 'driver/SCHEMA_VERSION'

	driver-schema:
	runs-on: ubuntu-22.04
	permissions:
	pull-requests: write
	needs: paths-filter
	if: needs.paths-filter.outputs.driver_schema_changed == 'false'
	steps:
	- name: Check driver SCHEMA_VERSION
	uses: mshick/add-pr-comment@v2
	with:
	message: \|
	Please double check driver/SCHEMA_VERSION file. See [versioning](https://github.com/falcosecurity/libs/blob/master/driver/README.VERSION.md#schema-version-number).

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