github actions: pin ubuntu 20.04 instead of -latest

diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index 491323b3e717e42ed87967f050afd526335dd743..a4ed3ee5779b43f93eff8982beb454d625550c55 100644 (file)
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -9,7 +9,7 @@ on:
 jobs:
   analyze:
     name: Analyze
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
 
     strategy:
       fail-fast: false

diff --git a/.github/workflows/fuzz.yml b/.github/workflows/fuzz.yml
index 52a2f397f9f8ba3dbd09e0dd1c5ad706e93d9cc9..c42bd8f93ea19711403b38c58d517efb6f0a1a8a 100644 (file)
--- a/.github/workflows/fuzz.yml
+++ b/.github/workflows/fuzz.yml
@@ -2,7 +2,7 @@ name: CIFuzz
 on: [pull_request]
 jobs:
   Fuzzing:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     steps:
     - name: Build Fuzzers
       uses: google/oss-fuzz/infra/cifuzz/actions/build_fuzzers@master

diff --git a/.github/workflows/spelling.yml b/.github/workflows/spelling.yml
index d3dcbfaa958baee41658aa50a13b066c1bb8873a..517a66052832e1285476f60088d8600f6bfd0c2a 100644 (file)
--- a/.github/workflows/spelling.yml
+++ b/.github/workflows/spelling.yml
@@ -21,7 +21,7 @@ on:
 jobs:
   build:
     name: Spell checking
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     steps:
     - uses: actions/checkout@v2.0.0
       with: