Bump pglast from 3.4 to 3.8

Bumps [pglast](https://github.com/lelit/pglast) from 3.4 to 3.8.
- [Release notes](https://github.com/lelit/pglast/releases)
- [Changelog](https://github.com/lelit/pglast/blob/v3/CHANGES.rst)
- [Commits](lelit/pglast@v3.4...v3.8)

---
updated-dependencies:
- dependency-name: pglast
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

poetry.lock

@@ -14,7 +14,7 @@ click = "^7"
 psycopg2-binary = "^2"
 parsimonious = "^0.8"
 minio = ">=4"
-pglast = {version = "==3.4", markers = 'sys_platform != "win32"'}
+pglast = {version = "==3.8", markers = 'sys_platform != "win32"'}
 requests = ">=2.22"
 docker = ">=5.0.2"
 click_log = ">=0.3.2"