Elide lifetimes where possible.

Fix clippy "warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)"

src/requests/kick_chat_member.rs

@@ -28,7 +28,7 @@ pub struct KickChatMember<'a> {
 }
 
 #[async_trait]
-impl<'a> Request for KickChatMember<'a> {
+impl Request for KickChatMember<'_> {
     type ReturnValue = True;
 
     async fn send_boxed(self) -> ResponseResult<Self::ReturnValue> {

src/requests/pin_chat_message.rs

@@ -45,7 +45,7 @@ impl<'a> PinChatMessage<'a> {
 }
 
 #[async_trait]
-impl<'a> Request for PinChatMessage<'a> {
+impl Request for PinChatMessage<'_> {
     type ReturnValue = True;
     async fn send_boxed(self) -> ResponseResult<Self::ReturnValue> {
         self.send().await

src/requests/restrict_chat_member.rs

@@ -29,7 +29,7 @@ pub struct RestrictChatMember<'a> {
 }
 
 #[async_trait]
-impl<'a> Request for RestrictChatMember<'a> {
+impl Request for RestrictChatMember<'_> {
     type ReturnValue = True;
 
     async fn send_boxed(self) -> ResponseResult<Self::ReturnValue> {

src/requests/send_animation.rs

@@ -65,7 +65,7 @@ pub struct SendAnimation<'a> {
 }
 
 #[async_trait]
-impl<'a> Request for SendAnimation<'a> {
+impl Request for SendAnimation<'_> {
     type ReturnValue = Message;
 
     async fn send_boxed(self) -> ResponseResult<Self::ReturnValue> {

src/requests/send_video.rs

@@ -66,7 +66,7 @@ pub struct SendVideo<'a> {
 }
 
 #[async_trait]
-impl<'a> Request for SendVideo<'a> {
+impl Request for SendVideo<'_> {
     type ReturnValue = Message;
 
     async fn send_boxed(self) -> ResponseResult<Self::ReturnValue> {