swiftlint: use identifier_name instead of deprecated variable_name

.swiftlint.yml

@@ -5,7 +5,7 @@ included:
 disabled_rules:
     - file_length
     - cyclomatic_complexity
-    - variable_name
+    - identifier_name
     - todo
     - line_length
     - type_body_length

Sources/Utils.swift

@@ -37,31 +37,31 @@ public func generateCodeVerifier() -> String? {
         .replacingOccurrences(of: "/", with: "_")
         .replacingOccurrences(of: "=", with: "")
         .trimmingCharacters(in: .whitespaces)
-    
+
     return codeVerifier
 }
 
 /// Generating a code challenge for PKCE
 public func generateCodeChallenge(codeVerifier: String?) -> String? {
     guard let verifier = codeVerifier, let data = verifier.data(using: .utf8) else { return nil }
-    
+
     #if !os(Linux)
-    var buffer = [UInt8](repeating: 0,  count: Int(CC_SHA256_DIGEST_LENGTH))
+    var buffer = [UInt8](repeating: 0, count: Int(CC_SHA256_DIGEST_LENGTH))
     data.withUnsafeBytes {
         _ = CC_SHA256($0.baseAddress, CC_LONG(data.count), &buffer)
     }
     let hash = Data(buffer)
     #else
-    let buffer = [UInt8](repeating: 0,  count: SHA256.byteCount)
+    let buffer = [UInt8](repeating: 0, count: SHA256.byteCount)
     let sha = Array(HMAC<SHA256>.authenticationCode(for: buffer, using: SymmetricKey(size: .bits256)))
     let hash = Data(sha)
     #endif
-   
+
     let challenge = hash.base64EncodedString()
         .replacingOccurrences(of: "+", with: "-")
         .replacingOccurrences(of: "/", with: "_")
         .replacingOccurrences(of: "=", with: "")
         .trimmingCharacters(in: .whitespaces)
-   
+
     return challenge
-}
+}