Update the actions runner to 22.04

To ensure that we have the latest compilers.  Ubuntu 22.04 will give us
gcc 11, which will compile the AMX examples, but won't be able to build
all the FP16 examples, and clang-14 which builds everything.

Signed-off-by: Mark Ryan <[email protected]>

Author: Mark Ryan

.github/workflows/main.yml

@@ -18,7 +18,7 @@ jobs:
   # This workflow contains a single job called "build"
   build:
     # The type of runner that the job will run on
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
 
     # Steps represent a sequence of tasks that will be executed as part of the job
     steps:
@@ -41,4 +41,4 @@ jobs:
           mkdir clang-build
           cd clang-build
           CC=clang CXX=clang++ cmake -DENABLE_WERROR=ON ..
-          make -j
+          make -j 4

verify.sh

@@ -15,7 +15,7 @@ find . \( -path './build' \) -prune -type f -o -name '*.cpp' -o -name "*.c" -o -
 mkdir -p build
 cd build
 cmake .. -DENABLE_WERROR=ON
-make -j && make test
+make -j 4 && make test
 
 exstack=0
 if type eu-readelf >/dev/null 2>&1  ; then