fix(deps): declare typer explicitly in runtime dependencies

typer is imported by src/hyperi_ci/cli.py but was pulled in
transitively via hyperi-pylib's CLI infrastructure. Hidden coupling:
if pylib ever drops typer, hyperi-ci's CLI breaks silently with no
manifest change.

Adding `typer>=0.25` to [project] dependencies makes the dependency
explicit. Same version that resolves today; no functional change.

Surfaced by the Phase 2 upstream-health audit
(`/deps` workflow, 2026-05-13).

Author: catinspace-au

pyproject.toml

@@ -23,6 +23,11 @@ dependencies = [
     "pydantic>=2.13",
     "pyyaml>=6.0",
     "tomli-w>=1.2.0",
+    # typer is used directly by src/hyperi_ci/cli.py — declare
+    # explicitly rather than relying on the transitive pull from
+    # hyperi-pylib's CLI infra. If pylib ever drops typer, this
+    # keeps us pinned to a known surface.
+    "typer>=0.25",
 ]
 
 [project.scripts]