Refresh intl patch for PHP 8.1 [skip ci]

Author: shivammathur

config/patches/8.1/0034-Amend-C-11-for-intl-compilation-on-older-distributio.patch

@@ -7,13 +7,13 @@ Subject: Amend C++11 for intl compilation on older distributions
  1 file changed, 1 insertion(+), 1 deletion(-)
 
 diff --git a/ext/intl/config.m4 b/ext/intl/config.m4
-index 2a9477f..549e4cc 100644
+index 27cd8b3..06ab68b 100644
 --- a/ext/intl/config.m4
 +++ b/ext/intl/config.m4
-@@ -86,7 +86,7 @@ if test "$PHP_INTL" != "no"; then
+@@ -95,7 +95,7 @@ if test "$PHP_INTL" != "no"; then
+     PHP_CXX_COMPILE_STDCXX(11, mandatory, PHP_INTL_STDCXX)
+   ])
 
-   PHP_REQUIRE_CXX()
-   PHP_CXX_COMPILE_STDCXX(11, mandatory, PHP_INTL_STDCXX)
 -  PHP_INTL_CXX_FLAGS="$INTL_COMMON_FLAGS $PHP_INTL_STDCXX $ICU_CXXFLAGS"
 +  PHP_INTL_CXX_FLAGS="$INTL_COMMON_FLAGS $PHP_INTL_STDCXX $ICU_CXXFLAGS -std=c++11"
    case $host_alias in