Fix Windows GHA Tests

The Windows tests job in Github Actions was incorrectly reporting
'success' on failed runs. This change ensures a single command is run in
each test 'step' to help remove any guesswork w.r.t. the shell behavior
on each platform.

This change also takes the oppportunity to make the formatting more
consistent in continuous_integration.yml.

.github/workflows/continuous_integration.yml

@@ -59,10 +59,9 @@ jobs:
       - name: Install
         run: cmake --install build --prefix build/install
       - name: Test
-              run: |
-                  cd build
-                  ctest --output-on-failure &&
-                  cd ../Test && ./runtests
+        run: ctest --output-on-failure --test-dir build
+      - name: Test (standalone)
+        run: cd Test && ./runtests
 
   linux-asan:
     runs-on: ubuntu-22.04
@@ -112,10 +111,9 @@ jobs:
       - name: Install
         run: cmake --install build --prefix build/install
       - name: Test
-              run: |
-                  cd build
-                  ctest --output-on-failure &&
-                  cd ../Test && ./runtests
+        run: ctest --output-on-failure --test-dir build
+      - name: Test (standalone)
+        run: cd Test && ./runtests
 
       # Ensure we can compile/run on an older distro
   linux_min:
@@ -157,10 +155,9 @@ jobs:
       - name: Install
         run: cmake --install build --prefix build/install
       - name: Test
-            run: |
-                cd build
-                ctest --output-on-failure &&
-                cd ../Test && ./runtests
+        run: ctest --output-on-failure --test-dir build
+      - name: Test (standalone)
+        run: cd Test && ./runtests
 
   macos:
     runs-on: ${{matrix.os}}
@@ -200,10 +197,9 @@ jobs:
       - name: Install
         run: cmake --install build --prefix build/install
       - name: Test
-              run: |
-                  cd build
-                  ctest --output-on-failure &&
-                  cd ../Test && ./runtests
+        run: ctest --output-on-failure --test-dir build
+      - name: Test (standalone)
+        run: cd Test && ./runtests
 
   windows:
     runs-on: ${{matrix.os.genus}}
@@ -240,10 +236,9 @@ jobs:
           cmake -S. -Bbuild -G "Visual Studio 16 2019" -A x64 -DCMAKE_INSTALL_PREFIX="$PWD/build/install"
           cmake --build build --config ${{matrix.cmake_build_type}} --target install
       - name: Test
-              run: |
-                  cd build
-                  ctest -C ${{matrix.cmake_build_type}} --output-on-failure
-                  cd ../Test && bash runtests
+        run: ctest -C ${{matrix.cmake_build_type}} --output-on-failure --test-dir build
+      - name: Test (standalone)
+        run: bash -c 'cd ./Test && ./runtests'
 
   android:
     runs-on: ubuntu-22.04