chore: change impl Into<T> for U to impl From<U> for T (#5948)

* chore: Change Into trait impl for KzgProof to From trait impl

* chore: change `impl Into <T> for U` to `impl From<U> for T`

* chore: remove `from-over-into` clippy lint exception

crypto/eth2_keystore/src/json_keystore/checksum_module.rs

@@ -14,9 +14,9 @@ pub enum ChecksumFunction {
     Sha256,
 }
 
-impl Into<String> for ChecksumFunction {
-    fn into(self) -> String {
-        match self {
+impl From<ChecksumFunction> for String {
+    fn from(from: ChecksumFunction) -> String {
+        match from {
             ChecksumFunction::Sha256 => "sha256".into(),
         }
     }
@@ -38,8 +38,8 @@ impl TryFrom<String> for ChecksumFunction {
 #[serde(try_from = "Value", into = "Value")]
 pub struct EmptyMap;
 
-impl Into<Value> for EmptyMap {
-    fn into(self) -> Value {
+impl From<EmptyMap> for Value {
+    fn from(_from: EmptyMap) -> Value {
         Value::Object(Map::default())
     }
 }

crypto/eth2_keystore/src/json_keystore/cipher_module.rs

@@ -13,9 +13,9 @@ pub enum CipherFunction {
     Aes128Ctr,
 }
 
-impl Into<String> for CipherFunction {
-    fn into(self) -> String {
-        match self {
+impl From<CipherFunction> for String {
+    fn from(from: CipherFunction) -> String {
+        match from {
             CipherFunction::Aes128Ctr => "aes-128-ctr".into(),
         }
     }

crypto/eth2_keystore/src/json_keystore/hex_bytes.rs

@@ -25,9 +25,9 @@ impl From<Vec<u8>> for HexBytes {
     }
 }
 
-impl Into<String> for HexBytes {
-    fn into(self) -> String {
-        hex::encode(self.0)
+impl From<HexBytes> for String {
+    fn from(from: HexBytes) -> String {
+        hex::encode(from.0)
     }
 }
 

crypto/eth2_keystore/src/json_keystore/kdf_module.rs

@@ -23,8 +23,8 @@ pub struct KdfModule {
 #[serde(try_from = "String", into = "String")]
 pub struct EmptyString;
 
-impl Into<String> for EmptyString {
-    fn into(self) -> String {
+impl From<EmptyString> for String {
+    fn from(_from: EmptyString) -> String {
         "".into()
     }
 }
@@ -91,9 +91,9 @@ pub enum KdfFunction {
     Pbkdf2,
 }
 
-impl Into<String> for KdfFunction {
-    fn into(self) -> String {
-        match self {
+impl From<KdfFunction> for String {
+    fn from(from: KdfFunction) -> String {
+        match from {
             KdfFunction::Scrypt => "scrypt".into(),
             KdfFunction::Pbkdf2 => "pbkdf2".into(),
         }