Prepare version 0.3.2 (#63)

### What kind of change does this PR introduce?

* Prepares the next version

### Does this PR introduce a breaking change?

No.

### Other information:

Windows builds are failing due to a weird bug in the `setup-micromamba`
action. An issue has been opened concerning it:
mamba-org/setup-micromamba#243

This likely is a false positive when it comes to typical conda-based
builds.

Prepare v0.3.1 (#38)

### What kind of change does this PR introduce?

* Prepares v0.3.1
* Updates the versions of GitHub Actions to use their commit hashes
* Adds the step-security/harden-runner Actions (security measure)
* Updates the README.md and CHANGELOG.md to use `https` for Raven
project URLs and to clarify the relation to `RavenPy`

### Does this PR introduce a breaking change?

`CHANGES.md` is now `CHANGELOG.md`.

### Other information:

Why "CHANGELOG.md"?
https://keepachangelog.com/en/1.0.0/#frequently-asked-questions

workaround to force a build type regardless of existing CMAKE_ARGS

fetch submodules

Merge pull request #17 from Ouranosinc/fix-version

Fix version string

Merge pull request #15 from Ouranosinc/optional_netcdf

Add support for optional NetCDF builds, update raven code base

Merge pull request #12 from Ouranosinc/preprare_v022

Prepare v0.2.2

correct workflows, add precommit hook for checking workflows

fix control flow

Merge pull request #4 from Ouranosinc/prepare_v010

Prepare v0.1.0