Small pyramid integration adjustment

See merge request ogs/ogs!4219

Allow small deviations when interpolating raster

See merge request ogs/ogs!4212

Removed IntegrationMethod template paramater from local assemblers that use Taylor-Hood FEs

See merge request ogs/ogs!4204

[MPL] Rename Henry "constant" to henry_coefficient

See merge request ogs/ogs!4213

The coefficient can be temperature dependent and so forth
and is, therefore not a constant.

Related to !4131 "TH2M Dissolution of gas components in
liquid phase" merge-request.

[ExtractSurface] Generate quadratic surface elements from quadratic bulk elements

Closes ufz-bgr/hpc/docs#24

See merge request ogs/ogs!4206

Fix docs master

See merge request ogs/ogs!4214

[ci] Run build docs job in Docker

See merge request ogs/ogs!4211

For a repeatedly failed windows CI job.

Use doxygen specific code block.

On envinf1 cpp-dependencies does not work.
On envinf3 lizard times out.

May run this job in a container eventually...

[LiquidFlow] Aperture size for inclined element

See merge request ogs/ogs!4201

which have inclined elements and have aperture definition now.