Remove OS matrix from CI

Author: jakeboone02

.github/workflows/main.yml

@@ -3,13 +3,8 @@ on: [push]
 
 jobs:
   build:
-    name: Build and test on ${{ matrix.os }}
-
-    runs-on: ${{ matrix.os }}
-    strategy:
-      matrix:
-        # os: [ubuntu-latest, windows-latest, macOS-latest]
-        os: [ubuntu-latest]
+    name: Build and test
+    runs-on: ubuntu-latest
 
     steps:
       - name: Checkout repo
@@ -31,5 +26,4 @@ jobs:
 
       # TODO: Upload to Codecov once Bun outputs lcov (https://github.com/oven-sh/bun/issues/4015)
       # - name: Upload coverage to Codecov
-      #   # if: matrix.os == 'ubuntu-latest' && matrix.node == '18.x'
       #   uses: codecov/codecov-action@v1