Rework code that changed variable type through reuse

Some of the code uses practice of reusing a variable through a chain of processing its contents in some cases the
variable type was changed over the course of the processing. This caused the type checking via mypy to fail.

The code is reworked to avoid any changing of variable type.

Author: per1234

reportsizedeltas/reportsizedeltas.py

@@ -516,9 +516,7 @@ def comment_report(self, pr_number: int, report_markdown: str) -> None:
         report_markdown -- Markdown formatted report
         """
         print("::debug::Adding deltas report comment to pull request")
-        report_data = {"body": report_markdown}
-        report_data = json.dumps(obj=report_data)
-        report_data = report_data.encode(encoding="utf-8")
+        report_data = json.dumps(obj={"body": report_markdown}).encode(encoding="utf-8")
         url = "https://api.github.com/repos/" + self.repository_name + "/issues/" + str(pr_number) + "/comments"
 
         self.http_request(url=url, data=report_data)
@@ -710,8 +708,7 @@ def get_page_count(link_header: str | None) -> int:
         # Get the pagination data
         for link in link_header.split(","):
             if link[-13:] == '>; rel="last"':
-                link = re.split("[?&>]", link)
-                for parameter in link:
+                for parameter in re.split("[?&>]", link):
                     if parameter[:5] == "page=":
                         page_count = int(parameter.split("=")[1])
                         break