DROPME - temporarily upgrade to numpy-1.24.2

Temporarily upgrade to numpy-1.24.2 to enable CI testing of quantumlib#5991.
Also add an intentionally failing CI check to ensure this commit
is not accidentally merged.

Please revert this commit before merging the pull-request.

.github/workflows/ci.yml

@@ -185,6 +185,15 @@ jobs:
       - name: Test dependencies with pip-compile
         run: |
           pip-compile --resolver=backtracking dev_tools/requirements/deps/cirq-all.txt -o-
+  numpy-1.24-guard:
+    name: Deliberate failure for numpy-1.24
+    runs-on: ubuntu-20.04
+    steps:
+        run: |
+          echo "This check fails to prevent merging of a temporary upgrade to numpy-1.24"
+          echo
+          echo "Please revert the commit which introduced this test."
+          exit 1
   build_docs:
     name: Build docs
     runs-on: ubuntu-20.04

cirq-core/requirements.txt

@@ -6,7 +6,12 @@ backports.cached_property~=1.0.1; python_version < '3.8'
 duet~=0.2.7
 matplotlib~=3.0
 networkx~=2.4
-numpy>=1.16,<1.24
+
+# Here we temporarily bump-up to numpy-1.24 for sake of CI testing
+# TODO(#5991) - revert this change before merge
+# numpy>=1.16,<1.24
+numpy==1.24.2
+
 pandas
 sortedcontainers~=2.0
 scipy