build(deps): update dogpile-cache requirement from <1.5 to <1.6

---
updated-dependencies:
- dependency-name: dogpile-cache
  dependency-version: 1.5.0
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

setup.py

@@ -27,7 +27,7 @@
     package_dir={"epo_ops": "epo_ops"},
     include_package_data=True,
     install_requires=[
-        "dogpile.cache<1.5",
+        "dogpile.cache<1.6",
         "importlib-metadata; python_version<'3.8'",
         "python-dateutil<2.10",
         "requests>=2.27,<3",