fix: set ubuntu image in cargo.toml

.github/workflows/release.yml

@@ -72,10 +72,6 @@ jobs:
         run: |
           cargo dist ${{ (!github.event.pull_request && format('host --steps=create --tag={0}', github.ref_name)) || 'plan' }} --output-format=json > plan-dist-manifest.json
           echo "cargo dist ran successfully"
-          # Hack around the fact that cargo-dist can't let us choose the runner
-          # version yet. We need this for protoc, but it's set to 20.04 to link
-          # against an old glibc for compatibility
-          sed -i 's/ubuntu-20.04/ubuntu-latest/' plan-dist-manifest.json
           cat plan-dist-manifest.json
           echo "manifest=$(jq -c "." plan-dist-manifest.json)" >> "$GITHUB_OUTPUT"
       - name: "Upload dist-manifest.json"
@@ -156,7 +152,7 @@ jobs:
     needs:
       - plan
       - build-local-artifacts
-    runs-on: "ubuntu-latest"
+    runs-on: "ubuntu-20.04"
     env:
       GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
       BUILD_MANIFEST_NAME: target/distrib/global-dist-manifest.json
@@ -203,7 +199,7 @@ jobs:
     if: ${{ always() && needs.plan.outputs.publishing == 'true' && (needs.build-global-artifacts.result == 'skipped' || needs.build-global-artifacts.result == 'success') && (needs.build-local-artifacts.result == 'skipped' || needs.build-local-artifacts.result == 'success') }}
     env:
       GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-    runs-on: "ubuntu-latest"
+    runs-on: "ubuntu-20.04"
     outputs:
       val: ${{ steps.host.outputs.manifest }}
     steps:
@@ -238,7 +234,7 @@ jobs:
     needs:
       - plan
       - host
-    runs-on: "ubuntu-latest"
+    runs-on: "ubuntu-20.04"
     env:
       GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
       PLAN: ${{ needs.plan.outputs.val }}
@@ -284,7 +280,7 @@ jobs:
     # still allowing individual publish jobs to skip themselves (for prereleases).
     # "host" however must run to completion, no skipping allowed!
     if: ${{ always() && needs.host.result == 'success' && (needs.publish-homebrew-formula.result == 'skipped' || needs.publish-homebrew-formula.result == 'success') }}
-    runs-on: "ubuntu-latest"
+    runs-on: "ubuntu-20.04"
     env:
       GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
     steps:

Cargo.toml

@@ -160,8 +160,10 @@ targets = ["aarch64-apple-darwin", "x86_64-apple-darwin", "x86_64-unknown-linux-
 publish-jobs = ["homebrew"]
 # Publish jobs to run in CI
 pr-run-mode = "upload"
-# Workaround for the fact that we need protoc from Ubuntu > 20.04
-allow-dirty = ["ci"]
+
+[workspace.metadata.dist.github-custom-runners]
+x86_64-unknown-linux-gnu = "ubuntu-latest"
+x86_64-unknown-linux-musl = "ubuntu-latest"
 
 [workspace.metadata.dist.dependencies.homebrew]
 protobuf = "3.21"