Change PYBIND11_INTERNALS_VERSION to 106: It will be changed to 7 in a follow-on PR that actually changes the internals.

Author: rwgk

include/pybind11/detail/internals.h

@@ -37,11 +37,11 @@
 /// further ABI-incompatible changes may be made before the ABI is officially
 /// changed to the new version.
 #ifndef PYBIND11_INTERNALS_VERSION
-#    define PYBIND11_INTERNALS_VERSION 7
+#    define PYBIND11_INTERNALS_VERSION 106
 #endif
 
-#if PYBIND11_INTERNALS_VERSION < 7
-#    error "PYBIND11_INTERNALS_VERSION 7 is the minimum for all platforms for pybind11v3."
+#if PYBIND11_INTERNALS_VERSION < 106
+#    error "PYBIND11_INTERNALS_VERSION 106 is the minimum (SPECIAL SITUATION)."
 #endif
 
 PYBIND11_NAMESPACE_BEGIN(PYBIND11_NAMESPACE)