crypto: avoid std::function

Using a template type lets the compiler choose an appropriate type
that likely is more efficient than std::function since the lambda
expressions at the call sites do not capture any values from surrounding
scopes.

PR-URL: #53683
Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
Reviewed-By: Filip Skokan <panva.ip@gmail.com>
Reviewed-By: Yagiz Nizipli <yagiz.nizipli@sentry.io>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Mohammed Keyvanzadeh <mohammadkeyvanzade94@gmail.com>

Author: tniessen

src/crypto/crypto_keys.cc

@@ -75,12 +75,11 @@ void GetKeyFormatAndTypeFromJs(
   *offset += 2;
 }
 
-ParseKeyResult TryParsePublicKey(
-    EVPKeyPointer* pkey,
-    const BIOPointer& bp,
-    const char* name,
-    // NOLINTNEXTLINE(runtime/int)
-    const std::function<EVP_PKEY*(const unsigned char** p, long l)>& parse) {
+template <typename F>
+ParseKeyResult TryParsePublicKey(EVPKeyPointer* pkey,
+                                 const BIOPointer& bp,
+                                 const char* name,
+                                 F&& parse) {
   unsigned char* der_data;
   long der_len;  // NOLINT(runtime/int)