Raise pybind11 CI test timeout to 30m

Author: b-long

.github/workflows/ci.yml

@@ -191,5 +191,10 @@ jobs:
     # auto-generated TypeError wording, which differs from pybindgen's for
     # one case in TestHi (Person's setters given the wrong argument type) --
     # a message-text difference, not a functional one.
+    #
+    # -timeout raises go test's own default (10m): each test here compiles
+    # twice (cgo, then a separate C++ step), against cffi's one, and once
+    # measured at ~18.5s/test average on windows-latest, 32 tests alone used
+    # 590s of the default budget.
     - name: Test
-      run: go test -v -skip '^(TestHi|TestBindFuncs|TestBindCallbacks|TestBindSimple|TestBuiltinSlices)$' ./...
+      run: go test -v -timeout=30m -skip '^(TestHi|TestBindFuncs|TestBindCallbacks|TestBindSimple|TestBuiltinSlices)$' ./...