New workflow for deploying the v3 spec to the site.

[licquia]

This workflow uses spec-parser and spdx-3-model to build and deploy the v3 spec into the main spec site, alongside the 2.x versions already deployed.

It is designed to be triggered by pushes to the development/v3.0 branch, via manual triggers, and via external triggers. The latter can be used to build workflows to cause the spec to be rebuilt on changes to spec-parser or spdx-3-model.

[licquia]

Additional notes:

The new workflow will add the 3.0 spec to the dropdown on the main spec page (https://spdx.github.io/spdx-spec/). I was able to test the workflow manually on my system, and it successfully added the 3.0 spec alongside the others.

[goneall]

Thanks @licquia - I have to admit, I may not be the best reviewer of actions, but it looks good to me.

If no one finds any issues before Tuesday, I'll merge

[kestewart]

Thanks Jeff, I'm not qualified to review the workflow, but from the comments, it seems like a good path. I added @iamwillbar to the thread in case he has a chance to take a look.

[goneall]

No one objected, so I'll go ahead and merge this in

[goneall]

@licquia - I just got a rather strange error from github actions after merging this. Any thoughts?

Run actions/checkout@f43a0e5ff[2](https://github.com/spdx/spdx-spec/actions/runs/7724789092/job/21057629430#step:3:2)bd2940956[3](https://github.com/spdx/spdx-spec/actions/runs/7724789092/job/21057629430#step:3:3)8e18286ca9a3d19567[4](https://github.com/spdx/spdx-spec/actions/runs/7724789092/job/21057629430#step:3:4)4
  with:
    ref: development/v3.0
    path: spdx-spec
    fetch-depth: 0
    token: ***
  
    repository: spdx/spdx-spec
    ssh-strict: true
    persist-credentials: true
    clean: true
    sparse-checkout-cone-mode: true
    fetch-tags: false
    lfs: false
    submodules: false
    set-safe-directory: true
/usr/bin/docker exec  1cd7e64fd[5](https://github.com/spdx/spdx-spec/actions/runs/7724789092/job/21057629430#step:3:5)b729adfea915e7545838e904c38b1[6](https://github.com/spdx/spdx-spec/actions/runs/7724789092/job/21057629430#step:3:6)f1dc80a9fc911cb3[7](https://github.com/spdx/spdx-spec/actions/runs/7724789092/job/21057629430#step:3:7)675d6bc sh -c "cat /etc/*release | grep ^ID"
Syncing repository: spdx/spdx-spec
Getting Git version info
Temporarily overriding HOME='/__w/_temp/29e[8](https://github.com/spdx/spdx-spec/actions/runs/7724789092/job/21057629430#step:3:8)2a5d-1bdd-41ab-8031-cbf3c37253b[9](https://github.com/spdx/spdx-spec/actions/runs/7724789092/job/21057629430#step:3:9)' before making global git config changes
Adding repository directory to the temporary git global config as a safe directory
/usr/bin/git config --global --add safe.directory /__w/spdx-spec/spdx-spec/spdx-spec
Initializing the repository
Disabling automatic garbage collection
Setting up auth
Fetching the repository
  /usr/bin/git -c protocol.version=2 fetch --prune --progress --no-recurse-submodules origin +refs/heads/*:refs/remotes/origin/* +refs/tags/*:refs/tags/*
  Error: fatal: could not read Username for 'https://github.com': terminal prompts disabled
  The process '/usr/bin/git' failed with exit code [12](https://github.com/spdx/spdx-spec/actions/runs/7724789092/job/21057629430#step:3:12)8
  Waiting 18 seconds before trying again
  /usr/bin/git -c protocol.version=2 fetch --prune --progress --no-recurse-submodules origin +refs/heads/*:refs/remotes/origin/* +refs/tags/*:refs/tags/*
  Error: fatal: could not read Username for 'https://github.com': terminal prompts disabled
  The process '/usr/bin/git' failed with exit code 128
  Waiting [15](https://github.com/spdx/spdx-spec/actions/runs/7724789092/job/21057629430#step:3:15) seconds before trying again
  /usr/bin/git -c protocol.version=2 fetch --prune --progress --no-recurse-submodules origin +refs/heads/*:refs/remotes/origin/* +refs/tags/*:refs/tags/*
  Error: fatal: could not read Username for 'https://github.com/': terminal prompts disabled
  Error: The process '/usr/bin/git' failed with exit code 128