Tweak - Stamp the normalize_city() runtime notice with 3.6.12, not 3.6.11.

3.6.11 shipped on 2026-08-05 while this stack was open, so the version passed to
wc_deprecated_function() names a release that went out without the deprecation
in it. This PR's changelog entries land in the unreleased 3.6.12 block, which is
the release that will actually raise the notice.

The audience is the reason this matters. normalize_city() is protected static
and retained solely so an out-of-repo subclass does not break on load; the
notice is the only signal those consumers get, and it tells them which release
to check their migration against. Pointing at 3.6.11 sends them to a release
where nothing changed.

Matches the @deprecated tag, corrected on the base branch when it was added.

Tests are unaffected: setExpectedDeprecated() matches on the function name, not
the version string.

Author: bartech

classes/class-wc-connect-taxjar-integration.php

@@ -1857,7 +1857,7 @@ private function get_itemized_tax_rates( $taxes, $taxjar_taxes, $options ): arra
 	 * @return string Normalized city, safe for `_update_tax_rate_cities` and `find_rates`.
 	 */
 	protected static function normalize_city( $city ) {
-		wc_deprecated_function( __METHOD__, '3.6.11', '\Automattic\WCServices\Tax\Address::normalize_city()' );
+		wc_deprecated_function( __METHOD__, '3.6.12', '\Automattic\WCServices\Tax\Address::normalize_city()' );
 
 		if ( ! is_string( $city ) ) {
 			return $city;