feat(attributes): add support for spanAttributes, which allows to capture values

config.m4

@@ -2,5 +2,5 @@ PHP_ARG_ENABLE(sentry, whether to enable Sentry support,
     [ --enable-sentry    Enable Sentry support])
 if test "$PHP_SENTRY" = "yes"; then
     AC_DEFINE(HAVE_SENTRY, 1, [Whether you have Sentry])
-    PHP_NEW_EXTENSION(sentry, sentry.c, $ext_shared)
-fi
+    PHP_NEW_EXTENSION(sentry, sentry.c span_attributes.c sentry_internal.c, $ext_shared)
+fi

config.w32

@@ -1,5 +1,5 @@
 ARG_ENABLE("sentry", "Enable Sentry support", "no");
 if (PHP_SENTRY == "yes") {
     AC_DEFINE("HAVE_SENTRY", 1, "Whether you have Sentry");
-    EXTENSION("Sentry", "sentry.c", true);
+    EXTENSION("Sentry", "sentry.c span_attributes.c sentry_internal.c", true);
 }