OGCFeat Drilldown Probe (Full) gives error with OGCRec Provider

**Describe the bug**
OGCFeat Drilldown Probe (Full) gives error with OGCRec Provider - think OWSLib outdated

**To Reproduce**
Steps to reproduce the behavior, e.g.:

1. create an OGCFeat Resource for pygeoapi demo: https://demo.pygeoapi.io/master
2. in Edit, add **OGC API Features (OAFeat) Drilldown** Probe
3. edit that probe, set Probe var 'drilldown_level` to 'Full'
4. save and press Test button
5. observe result: success is 'False'

**Expected Behavior**
expected result as success is `True`

**Screenshots or Logfiles**
Error in the logs:

```
2022-08-10 16:13:31,994 - urllib3.connectionpool - DEBUG - Starting new HTTPS connection (1): demo.pygeoapi.io:443
2022-08-10 16:13:32,298 - urllib3.connectionpool - DEBUG - https://demo.pygeoapi.io:443 "GET /master/collections/dutch-metadata/items?limit=1 HTTP/1.1" 200 5954
2022-08-10 16:13:32,301 - owslib.ogcapi - DEBUG - URL: https://demo.pygeoapi.io/master/collections/dutch-metadata/items/35149dfb-31d3-431c-a8bc-12a4034dac48
2022-08-10 16:13:32,301 - owslib.ogcapi - DEBUG - Request: https://demo.pygeoapi.io/master/collections/dutch-metadata/items/35149dfb-31d3-431c-a8bc-12a4034dac48
2022-08-10 16:13:32,304 - urllib3.connectionpool - DEBUG - Starting new HTTPS connection (1): demo.pygeoapi.io:443
2022-08-10 16:13:32,530 - urllib3.connectionpool - DEBUG - https://demo.pygeoapi.io:443 "GET /master/collections/dutch-metadata/items/35149dfb-31d3-431c-a8bc-12a4034dac48 HTTP/1.1" 200 4797
2022-08-10 16:13:32,534 - GeoHealthCheck.probe - INFO - Result: success=False msg=GetItems {
"code": "NoApplicableCode",
"description": "Invalid provider type"
}: OWSLib err: gdps-temperature response_time=19.627861
```

**Context (please complete the following information):**
- OS: any
- Browser: any
- Browser Version: any
- Python Version: 3.7
- GeoHealthCheck Version - latest `master` on aug 10, 2022.

**Additional context**
Seems to come from OWSLib, possible the version is outdated?
Version:
`OWSLib==0.20.0`

OWSlib is now at `0.26.0` with OGC API - Records 1.0
https://geopython.github.io/OWSLib/usage.html#ogc-api-records-1-0 - support.
But simply increasing the version number has challenges because of existing work-arounds in the OGCFeat Probe Python code for early OGC API versions.

Beginne mit dem OGCFeat Probe Python-Code und dem Dependency-Pin für OWSLib==0.20.0. Reproduziere den Fehler gegen die pygeoapi demo URL und untersuche anschließend OWSLib 0.26.0 sowie die bestehenden Workarounds für frühe OGC API-Versionen. Als abgeschlossen gilt die Aufgabe, wenn der Full drilldown test success=True meldet, ohne das frühere OGC API-Verhalten zu beeinträchtigen.

Vom Indexierungsmodell aus dem Issue-Text verfasst.