Switch to reusable workflows

.github/workflows/build-project.yml

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+name: Build Project
+on:
+  workflow_dispatch:
+  push:
+    branches-ignore:
+    - 'master'
+  workflow_run:
+    workflows: Tag and Sync
+    types: completed
+    branches: dev
+    # This is the branch that the original workflow ran on, which is technically dev, due to how
+    # the "pull_request" trigger works (it works off master correctly for a merged PR but is triggered
+    # by dev
+
+jobs:
+  trigger-build:
+    name: Build Project
+    if: github.event_name != 'workflow_run' || github.event.workflow_run.conclusion == 'success'
+    uses: oblivioncth/actions/.github/workflows/build-cxx-project.yml@v1
+    secrets:
+      ffynnon_access: ${{ secrets.OBYBOT_FFYNNON_ACCESS }}
+    with:
+      runs_exclude: >
+        [
+            { "compiler": "g++-10" }
+        ]

.github/workflows/check-release-pr.yml

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+name: Check Release PR
+on:
+  pull_request:
+    types: [opened, synchronize, reopened]
+    branches: master
+
+jobs:
+  check-pr-correctness:
+    name: Release PR Correctness Check
+    uses: oblivioncth/actions/.github/workflows/validate-release-pr.yml@v1

.github/workflows/generate-release.yml

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+name: Generate Release
+on:
+  workflow_run:
+    workflows: Build Project
+    types: completed
+    branches: master
+
+jobs:
+  generate-release:
+    name: Generate Release
+    permissions:
+      actions: read
+      contents: write
+      pages: write
+      id-token: write
+    if: github.event.workflow_run.conclusion == 'success'
+    uses: oblivioncth/actions/.github/workflows/generate-cxx-release.yml@v1
+    with:
+        artifacts_run_id: ${{ github.event.workflow_run.id }}

.github/workflows/label-pr.yml

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+name: Label PR
+on:
+  pull_request_target:
+    types: [opened, synchronize, reopened]
+
+jobs:
+  label-pr:
+    name: Label pull-request
+    permissions:
+      contents: read
+      pull-requests: write
+    uses: oblivioncth/actions/.github/workflows/label-pr.yml@v1