Update thumbnail type to InputFile only (#1374)

* Update thumbnail type to InputFile only

The thumbnail's type restriction has been changed in several methods and types. Previously, it accepted Union[InputFile, str], allowing both InputFile instances and strings. Now it's changed to accept only InputFile instances. This change enhances meaning of the thumbnail fields in due to Bot API accepts only InputFile instances.

* Added changelog

* Fixed typehints

.butcher/methods/sendAnimation/replace.yml

@@ -3,3 +3,9 @@ annotations:
     value: UNSET_PARSE_MODE
   protect_content:
     value: UNSET_PROTECT_CONTENT
+  thumbnail:
+    parsed_type:
+      type: entity
+      references:
+        category: types
+        name: InputFile

.butcher/methods/sendAudio/replace.yml

@@ -3,3 +3,9 @@ annotations:
     value: UNSET_PARSE_MODE
   protect_content:
     value: UNSET_PROTECT_CONTENT
+  thumbnail:
+    parsed_type:
+      type: entity
+      references:
+        category: types
+        name: InputFile

.butcher/methods/sendDocument/replace.yml

@@ -3,3 +3,9 @@ annotations:
     value: UNSET_PARSE_MODE
   protect_content:
     value: UNSET_PROTECT_CONTENT
+  thumbnail:
+    parsed_type:
+      type: entity
+      references:
+        category: types
+        name: InputFile

.butcher/methods/sendVideo/replace.yml

@@ -3,3 +3,9 @@ annotations:
     value: UNSET_PARSE_MODE
   protect_content:
     value: UNSET_PROTECT_CONTENT
+  thumbnail:
+    parsed_type:
+      type: entity
+      references:
+        category: types
+        name: InputFile

.butcher/methods/sendVideoNote/replace.yml

@@ -1,3 +1,9 @@
 annotations:
   protect_content:
     value: UNSET_PROTECT_CONTENT
+  thumbnail:
+    parsed_type:
+      type: entity
+      references:
+        category: types
+        name: InputFile