Re-add the @pure annotations

These were removed in 691c2c816e but
should remain in the code base.

src/UuidFactory.php

@@ -252,11 +252,17 @@ class UuidFactory implements UuidFactoryInterface
         $this->validator = $validator;
     }
 
+    /**
+     * @pure
+     */
     public function fromBytes(string $bytes): UuidInterface
     {
         return $this->codec->decodeBytes($bytes);
     }
 
+    /**
+     * @pure
+     */
     public function fromString(string $uuid): UuidInterface
     {
         $uuid = strtolower($uuid);
@@ -264,6 +270,9 @@ class UuidFactory implements UuidFactoryInterface
         return $this->codec->decode($uuid);
     }
 
+    /**
+     * @pure
+     */
     public function fromInteger(string $integer): UuidInterface
     {
         $hex = $this->numberConverter->toHex($integer);
@@ -284,6 +293,9 @@ class UuidFactory implements UuidFactoryInterface
         return $this->uuidFromBytesAndVersion($bytes, Uuid::UUID_TYPE_TIME);
     }
 
+    /**
+     * @pure
+     */
     public function fromHexadecimal(Hexadecimal $hex): UuidInterface
     {
         return $this->codec->decode($hex->__toString());
@@ -312,6 +324,7 @@ class UuidFactory implements UuidFactoryInterface
 
     /**
      * @inheritDoc
+     * @pure
      */
     public function uuid3($ns, string $name): UuidInterface
     {
@@ -327,6 +340,7 @@ class UuidFactory implements UuidFactoryInterface
 
     /**
      * @inheritDoc
+     * @pure
      */
     public function uuid5($ns, string $name): UuidInterface
     {
@@ -377,6 +391,8 @@ class UuidFactory implements UuidFactoryInterface
      *     and 65 will be replaced with the UUID variant. You MUST NOT rely on these bits for your application needs.
      *
      * @return UuidInterface A UuidInterface instance that represents a version 8 UUID
+     *
+     * @pure
      */
     public function uuid8(string $bytes): UuidInterface
     {
@@ -391,6 +407,8 @@ class UuidFactory implements UuidFactoryInterface
      * @param string $bytes The byte string from which to construct a UUID
      *
      * @return UuidInterface An instance of UuidInterface, created from the provided bytes
+     *
+     * @pure
      */
     public function uuid(string $bytes): UuidInterface
     {
@@ -406,6 +424,8 @@ class UuidFactory implements UuidFactoryInterface
      * @param string $hashAlgorithm The hashing algorithm to use when hashing together the namespace and name
      *
      * @return UuidInterface An instance of UuidInterface, created by hashing together the provided namespace and name
+     *
+     * @pure
      */
     private function uuidFromNsAndName(
         UuidInterface | string $ns,