Use compiled pip dependencies

[jrodbx]

While the alpha02 release succeeded, the website update failed with the following error:

Run pip3 install -r .github/workflows/requirements.txt
  pip3 install -r .github/workflows/requirements.txt
  mkdocs build
  shell: /usr/bin/bash -e {0}
  env:
    GRADLE_OPTS: -Dorg.gradle.jvmargs=-Xmx4g -Dorg.gradle.daemon=false -Dkotlin.incremental=false
    JAVA_HOME: /opt/hostedtoolcache/Java_Zulu_jdk/17.0.15-6/x64
    JAVA_HOME_17_X64: /opt/hostedtoolcache/Java_Zulu_jdk/17.0.15-6/x64
    pythonLocation: /opt/hostedtoolcache/Python/3.8.18/x64
    PKG_CONFIG_PATH: /opt/hostedtoolcache/Python/3.8.18/x64/lib/pkgconfig
    Python_ROOT_DIR: /opt/hostedtoolcache/Python/3.8.18/x64
    Python[2](https://github.com/cashapp/paparazzi/actions/runs/15786946499/job/44505325152#step:9:2)_ROOT_DIR: /opt/hostedtoolcache/Python/3.8.18/x64
    Python[3](https://github.com/cashapp/paparazzi/actions/runs/15786946499/job/44505325152#step:9:3)_ROOT_DIR: /opt/hostedtoolcache/Python/3.8.18/x6[4](https://github.com/cashapp/paparazzi/actions/runs/15786946499/job/44505325152#step:9:4)
    LD_LIBRARY_PATH: /opt/hostedtoolcache/Python/3.8.18/x64/lib
ERROR: Could not find a version that satisfies the requirement click==8.2.1 (from versions: 0.1, 0.2, 0.3, 0.4, 0.[5](https://github.com/cashapp/paparazzi/actions/runs/15786946499/job/44505325152#step:9:5), 0.5.1, 0.[6](https://github.com/cashapp/paparazzi/actions/runs/15786946499/job/44505325152#step:9:6), 0.7, 1.0, 1.1, 2.0, 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 3.0, 3.1, 3.2, 3.3, 4.0, 4.1, 5.0, 5.1, 6.0, 6.1, 6.2, 6.3, 6.4, 6.5, 6.6, 6.[7](https://github.com/cashapp/paparazzi/actions/runs/15786946499/job/44505325152#step:9:7).dev0, 6.7, 7.0, 7.1, 7.1.1, 7.1.2, 8.0.0a1, 8.0.0rc1, 8.0.0, [8](https://github.com/cashapp/paparazzi/actions/runs/15786946499/job/44505325152#step:9:8).0.1, 8.0.2, 8.0.3, 8.0.4, 8.1.0, 8.1.1, 8.1.2, 8.1.3, 8.1.4, 8.1.5, 8.1.6, 8.1.7, 8.1.8)
ERROR: No matching distribution found for click==8.2.1
Error: Process completed with exit code 1.

Cribbing notes from sqldelight/sqldelight:

• https://github.com/sqldelight/sqldelight/pull/5714/files
• https://github.com/sqldelight/sqldelight/commit/e2a9d627b8a74bc227340ae4600d67e2368d8341
• https://github.com/sqldelight/sqldelight/blob/master/.github/workflows/requirements.txt

it looks like rather than explicitly listing all the transitive dependencies of mkdocs, we can point only to the root dependencies and generate the requirements.txt "lockfile" of sorts to avoid updating dependencies that aren't yet incorporated into mkdocs?

I'm not very savvy in Python env/setup so any guidance would be appreciated in case I copied and applied something in a silly fashion.