Make example apps ready for python 3.10

[mnezh]

Application dependencies for sample apps are outdated, most of the applications fail when deploying on appstore runtime newer than python 3.8.
Here's the list of problematic dependencies (might have false positives, created with https://github.com/h2oai/h2o-ai-integration-testing/pull/463):

./graphql-httpx-script/requirements.txt
  black==22.8.0 (✓ py3 any)
  h2o-wave==0.23.1 (✓ py3 any)
./explaining-ratings/requirements.txt
  pandas==1.1.0 (✓ 3.8, ✗ 3.9, ✗ 3.10, ✗ 3.12)
  h2o-wave<1.0 (✗ ambiguos package version)
  matplotlib (✗ ambiguos package version)
  wordcloud (✗ ambiguos package version)
./insurance-churn-risk/requirements.txt
  pandas==1.1.0 (✓ 3.8, ✗ 3.9, ✗ 3.10, ✗ 3.12)
  pygments==2.7.1 (✗ 3.8, ✗ 3.9, ✗ 3.10, ✗ 3.12)
  h2o-wave<1.0 (✗ ambiguos package version)
  h2o-wave-ml>=0.6.0 (✗ ambiguos package version)
  https://h2o-release.s3.amazonaws.com/h2o/rel-zizler/7/Python/h2o-3.34.0.7-py2.py3-none-any.whl (✗ ambiguos package version)
  black==20.8b1 (✗ 3.8, ✗ 3.9, ✗ 3.10, ✗ 3.12)
  flake8-black==0.2.1 (✓ py3 any)
  flake8-import-order==0.18.1 (✓ py3 any)
  flake8-quotes==3.2.0 (✗ 3.8, ✗ 3.9, ✗ 3.10, ✗ 3.12)
  flake8==3.8.4 (✓ py3 any)
./vscode-editor/requirements.txt
  black==22.8.0 (✓ py3 any)
  h2o-wave==0.23.1 (✓ py3 any)
./audio-recording/requirements.txt
  black==22.8.0 (✓ py3 any)
  h2o-wave==0.23.1 (✓ py3 any)
./music-and-mental-health/requirements.txt
  h2o-wave==0.24.2 (✓ py3 any)
  pandas==1.5.2 (✓ 3.8, ✓ 3.9, ✓ 3.10, ✗ 3.12)
  plotly==5.11.0 (✓ py3 any)
  siuba==0.4.2 (✓ py3 any)
./docker-development/requirements.txt
  h2o-wave (✗ ambiguos package version)
./shopping-cart-recommendations/requirements.txt
  h2o-wave<1.0 (✗ ambiguos package version)
  pandas==1.1.4 (✓ 3.8, ✓ 3.9, ✗ 3.10, ✗ 3.12)
./sales-forecasting/requirements.txt
  boto3==1.16.23 (✓ py3 any)
  botocore==1.19.23 (✓ py3 any)
  certifi==2020.11.8 (✓ py3 any)
  click==7.1.2 (✓ py3 any)
  h11==0.11.0 (✓ py3 any)
  h2o-wave<1.0 (✗ ambiguos package version)
  httpcore==0.12.2 (✓ py3 any)
  httpx==0.16.1 (✓ py3 any)
  idna==2.10 (✓ py3 any)
  jmespath==0.10.0 (✓ py3 any)
  numpy==1.19.4 (✓ 3.8, ✓ 3.9, ✗ 3.10, ✗ 3.12)
  pandas==1.1.4 (✓ 3.8, ✓ 3.9, ✗ 3.10, ✗ 3.12)
  python-dateutil==2.8.1 (✓ py3 any)
  pytz==2020.4 (✓ py3 any)
  rfc3986==1.4.0 (✓ py3 any)
  s3transfer==0.3.3 (✓ py3 any)
  six==1.15.0 (✓ py3 any)
  sniffio==1.2.0 (✓ py3 any)
  starlette==0.13.8 (✓ py3 any)
  typing-extensions==3.7.4.3 (✓ py3 any)
  urllib3==1.26.2 (✓ py3 any)
  uvicorn==0.12.2 (✓ py3 any)
./template-mlops-single-prediction/requirements.txt
  h2o_wave==0.20.0 (✓ py3 any)
  toml==0.10.2 (✓ py3 any)
  loguru==0.6.0 (✓ py3 any)
  httpx==0.16.1 (✓ py3 any)
./credit-risk/requirements.txt
  numpy==1.19.1 (✓ 3.8, ✗ 3.9, ✗ 3.10, ✗ 3.12)
  pandas==1.1.0 (✓ 3.8, ✗ 3.9, ✗ 3.10, ✗ 3.12)
  plotly==4.10.0 (✓ py3 any)
  pygments==2.7.1 (✗ 3.8, ✗ 3.9, ✗ 3.10, ✗ 3.12)
  h2o-wave<1.0 (✗ ambiguos package version)
  h2o-wave-ml>=0.7.0 (✗ ambiguos package version)
  requests (✗ ambiguos package version)
  tabulate (✗ ambiguos package version)
  colorama>=0.3.8 (✗ ambiguos package version)
  future (✗ ambiguos package version)
  https://h2o-release.s3.amazonaws.com/h2o/rel-zizler/7/Python/h2o-3.34.0.7-py2.py3-none-any.whl (✗ ambiguos package version)
./twitter-sentiment/requirements.txt
  ./h2o_wave-nightly-py3-none-any.whl (✗ ambiguos package version)
  tweepy==3.9.0 (✓ py3 any)
  vaderSentiment (✗ ambiguos package version)
./template-explore-binary-classification/requirements.txt
  h2o_wave==0.20.0 (✓ py3 any)
  toml==0.10.2 (✓ py3 any)
  loguru==0.6.0 (✓ py3 any)
  pandas==1.4.1 (✓ 3.8, ✓ 3.9, ✓ 3.10, ✗ 3.12)
  matplotlib==3.5.1 (✓ 3.8, ✓ 3.9, ✓ 3.10, ✗ 3.12)
./jwt-auth/requirements.txt
  h2o-wave==0.25.2 (✓ py3 any)
  mongoengine (✗ ambiguos package version)
  python-jose[cryptography] (✗ ambiguos package version)
  passlib[bcrypt] (✗ ambiguos package version)
./emp-churn-step-by-step/requirements.txt
  h2o-wave==0.24.0 (✓ py3 any)
./guess-the-number/requirements.txt
  certifi==2020.12.5 (✓ py3 any)
  click==7.1.2 (✓ py3 any)
  h11==0.11.0 (✓ py3 any)
  h2o-wave<1.0 (✗ ambiguos package version)
  httpcore==0.12.2 (✓ py3 any)
  httpx==0.16.1 (✓ py3 any)
  idna==2.10 (✓ py3 any)
  rfc3986==1.4.0 (✓ py3 any)
  sniffio==1.2.0 (✓ py3 any)
  starlette==0.13.8 (✓ py3 any)
  typing-extensions==3.7.4.3 (✓ py3 any)
  uvicorn==0.12.2 (✓ py3 any)
./churn-risk/requirements.txt
  pandas==1.1.0 (✓ 3.8, ✗ 3.9, ✗ 3.10, ✗ 3.12)
  pygments==2.7.1 (✗ 3.8, ✗ 3.9, ✗ 3.10, ✗ 3.12)
  h2o-wave<1.0 (✗ ambiguos package version)
  h2o-wave-ml>=0.7.0 (✗ ambiguos package version)
  https://h2o-release.s3.amazonaws.com/h2o/rel-zizler/7/Python/h2o-3.34.0.7-py2.py3-none-any.whl (✗ ambiguos package version)
  black==20.8b1 (✗ 3.8, ✗ 3.9, ✗ 3.10, ✗ 3.12)
  flake8-black==0.2.1 (✓ py3 any)
  flake8-import-order==0.18.1 (✓ py3 any)
  flake8-quotes==3.2.0 (✗ 3.8, ✗ 3.9, ✗ 3.10, ✗ 3.12)
  flake8==3.8.4 (✓ py3 any)