ci: downgrade all workflows to ubuntu to 20.04

diff --git a/.github/workflows/code_coverage.yml b/.github/workflows/code_coverage.yml
index 52bfb1ac148b513243ee8348481526c4138463ef..5be04684b8ebf5d22007c2e65a7a78d8db6f7893 100644 (file)
--- a/.github/workflows/code_coverage.yml
+++ b/.github/workflows/code_coverage.yml
@@ -14,7 +14,7 @@ jobs:
   Codecov:
     name: Code Coverage
     if: false # disabled
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     env:
       RUSTFLAGS: "-Cinstrument-coverage"
       RUSTDOCFLAGS: "-Cinstrument-coverage"

diff --git a/.github/workflows/cont_integration.yml b/.github/workflows/cont_integration.yml
index e1472f91c576cf9bf4fa1ecbcb42d26ad7f77772..605997c30bf6c18df09d98a62152fff3b65baef1 100644 (file)
--- a/.github/workflows/cont_integration.yml
+++ b/.github/workflows/cont_integration.yml
@@ -14,7 +14,7 @@ jobs:
 
   build-test:
     name: Build and test
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     strategy:
       matrix:
         rust:
@@ -77,7 +77,7 @@ jobs:
 
   test-readme-examples:
     name: Test README.md examples
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     steps:
       - name: checkout
         uses: actions/checkout@v4
@@ -167,7 +167,7 @@ jobs:
 
   fmt:
     name: Rust fmt
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     steps:
       - name: Checkout
         uses: actions/checkout@v4

diff --git a/.github/workflows/nightly_docs.yml b/.github/workflows/nightly_docs.yml
index 9eef21ce8a7c00d5cd37a54fb62b0c031f5a2519..9301dad160fd8c3cfeaaf134c4c5fc4965986861 100644 (file)
--- a/.github/workflows/nightly_docs.yml
+++ b/.github/workflows/nightly_docs.yml
@@ -13,7 +13,7 @@ on:
 jobs:
   build_docs:
     name: Build docs
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     steps:
       - name: Checkout sources
         uses: actions/checkout@v4
@@ -43,7 +43,7 @@ jobs:
     name: 'Publish docs'
     if: github.ref == 'refs/heads/master'
     needs: [build_docs]
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     steps:
       - name: Checkout `bitcoindevkit.org`
         uses: actions/checkout@v4