gh-39185: Fix find_replacements with Python 3.13

    
After PEP 667 implementation [1] `globals()` changes within an `exec`
call are not propagated outside the call

[1] python/cpython@b034f14a4b6e9197d3926046721
b8b4b4b4f5b3d
    
URL: #39185
Reported by: Antonio Rojas
Reviewer(s): user202729

src/sage/misc/replace_dot_all.py

@@ -194,14 +194,15 @@ def find_replacements(location, package_regex=None, verbose=False):
                     to_exec = to_exec.replace("'", '').replace('"', '')
                     if (to_exec[-1] == ','):
                         to_exec = to_exec[:-1]
-                    exec(to_exec)
+                    glob = dict()
+                    exec(to_exec, glob)
                 except ModuleNotFoundError as err:
                     print(f'ModuleNotFoundError: {err} found when trying to execute {to_exec}')
                 except ImportError as err:
                     print(f'ImportError: {err} found when trying to execute {to_exec}')
 
                 try:  # try to evaluate the list of module names to get a list of the modules themselves which we can call import_statements on
-                    modules = eval(to_eval)
+                    modules = eval(to_eval, glob)
                 except NameError as err:
                     print(f'NameError: {err} found when trying to evaluate {to_eval} at {location}:{row_index + 1}')
                 except SyntaxError as err: