Update to laravel 7

vendor/symfony/routing/CompiledRoute.php

@@ -64,10 +64,9 @@ class CompiledRoute implements \Serializable
     }
 
     /**
-     * @internal since Symfony 4.3
-     * @final since Symfony 4.3
+     * @internal
      */
-    public function serialize()
+    final public function serialize(): string
     {
         return serialize($this->__serialize());
     }
@@ -85,10 +84,9 @@ class CompiledRoute implements \Serializable
     }
 
     /**
-     * @internal since Symfony 4.3
-     * @final since Symfony 4.3
+     * @internal
      */
-    public function unserialize($serialized)
+    final public function unserialize($serialized)
     {
         $this->__unserialize(unserialize($serialized, ['allowed_classes' => false]));
     }
@@ -96,7 +94,7 @@ class CompiledRoute implements \Serializable
     /**
      * Returns the static prefix.
      *
-     * @return string The static prefix
+     * @return string
      */
     public function getStaticPrefix()
     {
@@ -106,7 +104,7 @@ class CompiledRoute implements \Serializable
     /**
      * Returns the regex.
      *
-     * @return string The regex
+     * @return string
      */
     public function getRegex()
     {
@@ -116,7 +114,7 @@ class CompiledRoute implements \Serializable
     /**
      * Returns the host regex.
      *
-     * @return string|null The host regex or null
+     * @return string|null
      */
     public function getHostRegex()
     {
@@ -126,7 +124,7 @@ class CompiledRoute implements \Serializable
     /**
      * Returns the tokens.
      *
-     * @return array The tokens
+     * @return array
      */
     public function getTokens()
     {
@@ -136,7 +134,7 @@ class CompiledRoute implements \Serializable
     /**
      * Returns the host tokens.
      *
-     * @return array The tokens
+     * @return array
      */
     public function getHostTokens()
     {
@@ -146,7 +144,7 @@ class CompiledRoute implements \Serializable
     /**
      * Returns the variables.
      *
-     * @return array The variables
+     * @return array
      */
     public function getVariables()
     {
@@ -156,7 +154,7 @@ class CompiledRoute implements \Serializable
     /**
      * Returns the path variables.
      *
-     * @return array The variables
+     * @return array
      */
     public function getPathVariables()
     {
@@ -166,7 +164,7 @@ class CompiledRoute implements \Serializable
     /**
      * Returns the host variables.
      *
-     * @return array The variables
+     * @return array
      */
     public function getHostVariables()
     {