(core) Upgrade friendly-traceback and its dependencies

Summary:
Upgrading the friendly-traceback package to include a fix that I specifically requested in https://github.com/friendly-traceback/friendly-traceback/issues/144 as a solution for the problem mentioned in https://grist.quip.com/HoSmAlvFax0j#MbTADAEcJb7 . Specifically, this shows a friendly explanation when using `len()` with a generator expression.

Also upgraded the dependencies `executing` and `stack_data` (which are mine) while I'm at it, although I don't expect this to really change anything.

Test Plan:
Existing tests. There was one test failure because of a new explanation about generic `Exception`s which I've suppressed.

Tested manually that the new explanation appears:

{F64605}

Reviewers: dsagal

Reviewed By: dsagal

Differential Revision: https://phab.getgrist.com/D3687

sandbox/grist/friendly_errors.py

@@ -24,6 +24,10 @@ def friendly_message(exc):
       # with a suggestion to report the case on GitHub.
       return ""
 
+    if "All built-in exceptions defined by Python are derived from `Exception`" in generic:
+      # Unhelpful explanation for a generic `Exception`
+      return ""
+
     # Add a blank line between the standard message and the friendly message
     result = "\n\n" + generic
 

sandbox/requirements3.txt

@@ -1,9 +1,9 @@
 ### python 3 requirements, see requirements.txt for python 2
 
 # friendly-traceback and its dependencies, for python 3 only
-friendly-traceback==0.5.46
-stack-data==0.3.0
-executing==0.8.3
+friendly-traceback==0.7.48
+stack-data==0.5.1
+executing==1.1.1
 pure-eval==0.2.2
 
 # openpyxl and its dependencies, for imports, which are python 3 only