remove running all tests with and without coverage (#1006)

Author: KristofferC

.github/workflows/ci.yml

@@ -71,7 +71,6 @@ jobs:
           - macos-14 # macos-14 = Apple Silicon.
         coverage:
           - 'true'
-          - 'false' # needed for Julia 1.9+ to test from a session using pkgimages
         exclude:
           # For now, we'll disable testing 32-bit Julia 1.9 on all operating systems.
           # TODO: remove the following once we fix the tests for 32-bit Julia 1.9 .