test: convert test_boot to runtime tests with F32

Move the `test_boot` suite into ./test/run closer to the other runtime
tests, and convert the used manifest over to an MPP based F32 manifest.

.github/workflows/runtime-tests.yml

@@ -22,17 +22,6 @@ jobs:
       with:
         run: make test-runtime
 
-  boot_tests:
-    name: "Boot Tests"
-    runs-on: ubuntu-latest
-    steps:
-    - name: "Clone Repository"
-      uses: actions/checkout@v2
-    - name: "Run Boot Tests"
-      uses: osbuild/containers/ghci/actions/ghci-osbuild@ghci/v1
-      with:
-        run: python3 -m unittest -v test.test_boot
-
   assembler_tests:
     name: "Assembler Tests"
     runs-on: ubuntu-latest