ci: avoid cmake -Hpath

This is an undocumented option similar to the `-Spath' option introduced
in cmake 3.13.
Replace all instances of `-Hpath' with `-Spath' in macos workflow.
Replace `-H. -Bpath' with `mkdir path; cd ./path; cmake ..' in zuul
scripts since it runs an older version of cmake.

Fixes #9008
Closes #9014

scripts/zuul/script.sh

@@ -90,7 +90,10 @@ if [ "$T" = "tidy" ]; then
 fi
 
 if [ "$T" = "cmake" ]; then
-  cmake -H. -Bbuild -DCURL_WERROR=ON $C
+  mkdir -p build
+  cd ./build
+  cmake .. -DCURL_WERROR=ON $C
+  cd ..
   cmake --build build
   env TFLAGS="!1139 $TFLAGS" cmake --build build --target test-nonflaky
 fi