BeakerX 1.4.1 from conda-forge forced to use openjdk 8.0.121?

Hello.

I've installed Anaconda, and no matter whether I'm installing beakerx 1.4.1 (together with jupyter) into a Python 3.9 environment using the Anaconda navigator, or whether I'm using the conda commands `conda config --env --add pinned_packages 'openjdk>8.0.121'
conda install -y -c conda-forge ipywidgets beakerx` and `conda install -y -c conda-forge ipywidgets beakerx`, I end up with a setup where beakerx 1.4.1 appears to be fixed to using openjdk version 8.0.121. So I cannot use jdk 11, for example.

In the conda-meta folder, file beakerx-1.4.1-py39hcbf5309_7.json, the following is stated:

```json
"depends": [
"ipywidgets >=7.0",
"maven",
"notebook >=5.7.4",
"numpy",
"openjdk 8.0.121",
"pandas",
"py4j",
"pytest",
"python >=3.9,<3.10.0a0",
"python_abi 3.9.* *_cp39",
"requests",
"widgetsnbextension"
],
```
Is there a reason for the fixed - and quite old - openjdk version? If not, how can this be solved?

Related issues: #8225, #8243, #8243, and #8313