No way to install stressrnn with the new onnxruntime above 1.6.0

[Uzer1]

Hello.
StressRNN is limited to ONNXRuntime version 1.6 or lower.
It's impossible to install it now. The oldest version available is 1.7.0.
I input this:

pip3 install git+https://github.com/Desklop/StressRNN

And I get this:

C:\Users\PC>pip3 install git+https://github.com/Desklop/StressRNN
Defaulting to user installation because normal site-packages is not writeable
Collecting git+https://github.com/Desklop/StressRNN
  Cloning https://github.com/Desklop/StressRNN to c:\users\pc\appdata\local\temp
\pip-req-build-1u9fsecf
  Running command git clone -q https://github.com/Desklop/StressRNN 'C:\Users\PC
\AppData\Local\Temp\pip-req-build-1u9fsecf'
Requirement already satisfied: numpy>=1.16.0 in c:\program files\python39\lib\si
te-packages (from stressrnn==0.2.0) (1.21.0)
Collecting h5py<=2.10.0
  Using cached h5py-2.10.0.tar.gz (301 kB)
Requirement already satisfied: pymorphy2[fast]>=0.8 in c:\program files\python39
\lib\site-packages (from stressrnn==0.2.0) (0.9.1)
ERROR: Could not find a version that satisfies the requirement onnxruntime<=1.6
(from stressrnn) (from versions: 1.7.0, 1.8.0, 1.8.1)
ERROR: No matching distribution found for onnxruntime<=1.6

How to use it now that this version 1.6 is no longer available?
I need this to launch Silero text-to-speech.

[Uzer1]

https://pypi.org/project/onnxruntime/1.6.0/#files
I could install onnxruntime ver. 1.6.0 from a wheel file from this link.

onnxruntime-1.6.0-cp38-cp38-win_amd64.whl (4.2 MB)

This one.

Pip install py -m pip install "C:\Users\PC\Desktop\onnxruntime-1.6.0-cp38-cp38-win_amd64.whl"

It works with Python 3.8 only, it's in the title — CP38.

I am generating that Silero voice now, so it worked. Other modules also were hard to install, however.

[snnn]

cross ref: microsoft/onnxruntime#8365