fix: camelCased maxNumber in the Challenge

Author: ovx

src/Challenge.php

@@ -9,7 +9,7 @@ class Challenge
     public function __construct(
         public readonly string $algorithm,
         public readonly string $challenge,
-        public readonly int $maxnumber,
+        public readonly int $maxNumber,
         public readonly string $salt,
         public readonly string $signature,
     ) {

tests/AltchaTest.php

@@ -27,7 +27,7 @@ public function testCreateChallenge(): void
     {
         self::assertEquals(Algorithm::SHA256->value, self::$challenge->algorithm);
         self::assertNotEmpty(self::$challenge->challenge);
-        self::assertEquals(BaseChallengeOptions::DEFAULT_MAX_NUMBER, self::$challenge->maxnumber);
+        self::assertEquals(BaseChallengeOptions::DEFAULT_MAX_NUMBER, self::$challenge->maxNumber);
         self::assertNotEmpty(self::$challenge->salt);
         self::assertNotEmpty(self::$challenge->signature);
     }
@@ -53,7 +53,7 @@ public function testSolveChallenge(): void
             self::$challenge->challenge,
             self::$challenge->salt,
             Algorithm::from(self::$challenge->algorithm),
-            self::$challenge->maxnumber
+            self::$challenge->maxNumber
         );
 
         self::assertInstanceOf(Solution::class, $solution);
@@ -67,7 +67,7 @@ public function testInvalidSolveChallenge(): void
             'asd',
             self::$challenge->salt,
             Algorithm::from(self::$challenge->algorithm),
-            self::$challenge->maxnumber
+            self::$challenge->maxNumber
         );
 
         self::assertNull($solution);
@@ -79,7 +79,7 @@ public function testVerifySolution(): void
             self::$challenge->challenge,
             self::$challenge->salt,
             Algorithm::from(self::$challenge->algorithm),
-            self::$challenge->maxnumber
+            self::$challenge->maxNumber
         );
 
         self::assertInstanceOf(Solution::class, $solution);