refactor(pcre): extract composer/pcre into the shirabe-pcre crate

Move `Composer\Pcre` out of shirabe-external-packages and into its own
crate, so the path is `shirabe_pcre::preg::Preg` instead of
`shirabe_external_packages::composer::pcre::preg::Preg`.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

2 files changed, 2 insertions, 2 deletions

diff --git a/crates/shirabe/src/advisory/auditor.rs b/crates/shirabe/src/advisory/auditor.rs
index d661cf90..3c010bd2 100644
--- a/crates/shirabe/src/advisory/auditor.rs
+++ b/crates/shirabe/src/advisory/auditor.rs
@@ -12,8 +12,8 @@ use crate::package::base_package;
 use crate::repository::RepositorySet;
 use crate::util::PackageInfo;
 use indexmap::IndexMap;
-use shirabe_external_packages::composer::pcre::Preg;
 use shirabe_external_packages::symfony::console::formatter::OutputFormatter;
+use shirabe_pcre::Preg;
 use shirabe_php_shim::{
     DATE_ATOM, InvalidArgumentException, PhpMixed, array_all, array_any, array_key_exists,
     array_keys, array_reduce, get_class, str_starts_with,
diff --git a/crates/shirabe/src/advisory/partial_security_advisory.rs b/crates/shirabe/src/advisory/partial_security_advisory.rs
index 4f07c8ca..677425ba 100644
--- a/crates/shirabe/src/advisory/partial_security_advisory.rs
+++ b/crates/shirabe/src/advisory/partial_security_advisory.rs
@@ -5,7 +5,7 @@ use crate::advisory::SecurityAdvisory;
 use crate::package::version::VersionParser;
 use chrono::{DateTime, Utc};
 use indexmap::IndexMap;
-use shirabe_external_packages::composer::pcre::Preg;
+use shirabe_pcre::Preg;
 use shirabe_php_shim::{PhpMixed, php_regex};
 use shirabe_semver::constraint::AnyConstraint;
 use shirabe_semver::constraint::SimpleConstraint;