Fix 'Drupal.Commenting.InlineComment.InvalidEndChar' coding standard

No longer postponed. I rebased onto 11.x

Was a large MR to review but was easy. If anyone curious what the extra deletion is from

core/modules/pgsql/src/Driver/Database/pgsql/Connection.php deleted a commented out elseif line

Some feedback where the change makes the comment misleading - generally where we are listing punctuation in some way - plus some nitpicks and some weird cases where only some comments appear to be taken into account (especially in TaxonomyFieldAllTermsTest and EntityQueryTest).

I set this to NR for initial feedback because all I did was create and MR for the latest patch. I didn't expect it to become RTBC. Now that I look more closely the first thing I see is that the sniff is not enabled!

I will assign to myself and clean this up.

When autofixing a full stop is added to cspell ignore lines

// cSpell:ignore TÉXT äöüåøhello aouaohello aeoeueaohello Pácê.

which results in spelling errors.
core/modules/file/tests/src/Unit/SanitizeNameTest.php:102:13 - Unknown word (Pácê)

Found 📌 Improve the cspell exception in Drupal.Commenting.InlineComment.InvalidEndChar Active which explains why only some cspell lines are failing. The sniff ignores lines where cspell is all lower case.

But there are other problems with the sniff. Therefor postponing on the Coder issue.