ci/test: run jobs on ubuntu-20.04, instead of ubuntu-18.04

Signed-off-by: Unai Martinez-Corral <[email protected]>

Author: umarcor

.github/workflows/test.yml

@@ -66,7 +66,7 @@ jobs:
 
   Build:
     name: 'B: Building VtR'
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
     steps:
 
     - uses: actions/setup-python@v2
@@ -86,7 +86,7 @@ jobs:
 
 
   Format:
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
     strategy:
       fail-fast: false
       matrix:
@@ -109,7 +109,7 @@ jobs:
 
   UniTests:
     name: 'U: C++ Unit Tests'
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
     steps:
 
     - uses: actions/setup-python@v2
@@ -126,7 +126,7 @@ jobs:
 
   Warnings:
     name: 'W: Check Compilation Warnings'
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
     steps:
 
     - uses: actions/setup-python@v2
@@ -148,7 +148,7 @@ jobs:
 
 
   Regression:
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
     strategy:
       fail-fast: false
       matrix:
@@ -218,7 +218,7 @@ jobs:
           vtr_flow/**/parse_results*.txt
 
   Sanitized:
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
     strategy:
       fail-fast: false
       matrix:
@@ -250,7 +250,7 @@ jobs:
 
   ODINII:
     name: 'ODIN-II Basic Test'
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
     steps:
 
     - uses: actions/setup-python@v2
@@ -273,7 +273,7 @@ jobs:
 
   VQM2BLIF:
     name: 'VQM2BLIF Basic Tests'
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
     steps:
 
     - uses: actions/setup-python@v2
@@ -294,7 +294,7 @@ jobs:
 
 
   YOSYSODINII:
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
     strategy:
       fail-fast: false
       matrix:
@@ -326,7 +326,7 @@ jobs:
 
 
   Compatibility:
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
     strategy:
       fail-fast: false
       matrix:
@@ -373,7 +373,7 @@ jobs:
       - VQM2BLIF
       - YOSYSODINII
       - Compatibility
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
     steps:
 
     - uses: actions/setup-python@v2