chore(deps): update dependency ops to v3.8.0 (#1199)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: Daniel Nguyen <daniel.nguyen@canonical.com>

Author: renovate[bot]

requirements.txt

@@ -4,7 +4,7 @@ cryptography ==49.0.0
 deepdiff ==9.1.0
 jinja2 ==3.1.6
 jsonschema ==4.26.0
-ops ==3.7.1
+ops ==3.8.0
 pydantic ==2.13.4
 # Must match charm-binary-python-packages in charmcraft.yaml (Renovate keeps them in sync).
 psycopg2-binary ==2.9.12