Updates Ubuntu runner version

Author: digimezzo

.github/workflows/merge.yml

@@ -7,7 +7,7 @@ on:
 
 jobs:
     merge_build_on_linux:
-        runs-on: ubuntu-20.04
+        runs-on: ubuntu-22.04
         if: github.event.pull_request.merged == true
         steps:
             - uses: actions/checkout@v2

.github/workflows/nightly.yml

@@ -8,7 +8,7 @@ on:
 
 jobs:
     nightly_build_on_linux:
-        runs-on: ubuntu-20.04
+        runs-on: ubuntu-22.04
         steps:
             - uses: actions/checkout@v2
             - uses: actions/setup-node@master