GitHub API deployment cURL calls failing on forked PRs

[davereid]

See https://github.com/Lullabot/drainpipe/actions/runs/8160501550/job/22938209686#step:15:45

2024-03-21T14:56:46.9335131Z ##[group]Run export GITHUB_DEPLOYMENT=$(curl -f -X POST \
2024-03-21T14:56:46.9335639Z �[36;1mexport GITHUB_DEPLOYMENT=$(curl -f -X POST \�[0m
2024-03-21T14:56:46.9336173Z �[36;1m    https://api.github.com/repos/$GITHUB_REPOSITORY/deployments \�[0m
2024-03-21T14:56:46.9336934Z �[36;1m    -H 'Accept: application/vnd.github.v3+json' \�[0m
2024-03-21T14:56:46.9337659Z �[36;1m    -H "Authorization: token ***" \�[0m
2024-03-21T14:56:46.9338826Z �[36;1m    -d "{\"ref\": \"$DRAINPIPE_SHA\", \"auto_merge\": false, \"environment\": \"pantheon-pr-$DRAINPIPE_PR_NUMBER\", \"transient_environment\": true, \"required_contexts\": [], \"description\": \"Pantheon Multidev for Pull Request #$DRAINPIPE_PR_NUMBER\"}" \�[0m
2024-03-21T14:56:46.9339949Z �[36;1m)�[0m
2024-03-21T14:56:46.9340321Z �[36;1mexport GITHUB_DEPLOYMENT_ID=$(echo $GITHUB_DEPLOYMENT | jq '.id')�[0m
2024-03-21T14:56:46.9340926Z �[36;1mecho "GITHUB_DEPLOYMENT_ID=$GITHUB_DEPLOYMENT_ID" >> $GITHUB_ENV�[0m
2024-03-21T14:56:46.9341698Z �[36;1mecho "Created GitHub Deployment ID $GITHUB_DEPLOYMENT_ID"�[0m
2024-03-21T14:56:46.9342425Z �[36;1mif [ -z "$GITHUB_DEPLOYMENT_ID" ] || [ "$GITHUB_DEPLOYMENT_ID" = "null" ]; then echo $GITHUB_DEPLOYMENT && exit 1; fi�[0m
2024-03-21T14:56:46.9343987Z �[36;1mcurl -f -H "Authorization: token ***" -X POST -H "Accept: application/vnd.github.v3+json" https://api.github.com/repos/$GITHUB_REPOSITORY/deployments/$GITHUB_DEPLOYMENT_ID/statuses -d '{"state":"in_progress"}'�[0m
2024-03-21T14:56:46.9369352Z shell: /usr/bin/bash --noprofile --norc -e -o pipefail {0}
2024-03-21T14:56:46.9369750Z env:
2024-03-21T14:56:46.9369965Z   DRAINPIPE_PR_NUMBER: 458
2024-03-21T14:56:46.9370321Z   DRAINPIPE_SHA: 52539f89f9bd37b8a255ab139cdc3babd90bea61
2024-03-21T14:56:46.9370701Z   DRAINPIPE_DDEV: true
2024-03-21T14:56:46.9370951Z ##[endgroup]
2024-03-21T14:56:46.9476077Z   % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
2024-03-21T14:56:46.9481963Z                                  Dload  Upload   Total   Spent    Left  Speed
2024-03-21T14:56:46.9482894Z 
2024-03-21T14:56:47.1757421Z   0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
2024-03-21T14:56:47.1758655Z  58   377    0     0  100   220      0    964 --:--:-- --:--:-- --:--:--   964
2024-03-21T14:56:47.1760004Z curl: (22) The requested URL returned error: 403
2024-03-21T14:56:47.1997267Z Created GitHub Deployment ID 
2024-03-21T14:56:47.1997574Z 
2024-03-21T14:56:47.2011563Z ##[error]Process completed with exit code 1.

[davereid]

Is this because the PR is coming from a fork? I'm guessing so since GITHUB_TOKEN doesn't have access to creating deployments on the parent repository.