Upgrade to httpbin 0.10.0 (#6496)

Author: nateprewitt

.github/workflows/run-tests.yml

@@ -26,6 +26,7 @@ jobs:
       uses: actions/setup-python@61a6322f88396a6271a6ee3565807d608ecaddd1 # v4.7.0
       with:
         python-version: ${{ matrix.python-version }}
+        cache: 'pip'
     - name: Install dependencies
       run: |
         make

requirements-dev.txt

@@ -3,11 +3,7 @@ pytest>=2.8.0,<=6.2.5
 pytest-cov
 pytest-httpbin==2.0.0
 pytest-mock==2.0.0
-httpbin==0.7.0
+httpbin==0.10.0
 trustme
 wheel
 cryptography<40.0.0; python_version <= '3.7' and platform_python_implementation == 'PyPy'
-
-# Flask Stack
-Flask>1.0,<2.0
-markupsafe<2.1