[ci]Upgrade to check-spelling 0.0.20alpha7 (#19127)

* spelling: added

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: and

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: another

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: color

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: file

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: github

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: not

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: occurrences

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: stamp

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: suppressions

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: the

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: up to

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: whether

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: whichdoes

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* Upgrade check-spelling to v0.0.20-alpha7

Config based on:
a5001170a7

* Adding duplicate detection to patterns.txt
* Adding line_forbidden.patterns
* Adding reject.txt
* Updated excludes (and sorted)
* Switching to unified workflow

* moving `wil` to allow.txt to clarify that it's a term of art
  (https://github.com/microsoft/wil), whereas often it's a typo for `will`.

* Update src/runner/main.cpp

Co-authored-by: Josh Soref <2119212+jsoref@users.noreply.github.com>

src/modules/previewpane/common/controls/FormHandlerControl.cs

@@ -123,7 +123,7 @@ namespace Common
             // Call garbage collection at the time of unloading of Preview.
             // Which is preventing prevhost.exe to exit at the time of closing File explorer.
             // Preview Handlers run in a separate process from PowerToys. This will not affect the performance of other modules.
-            // Mitigate the following Github issue: https://github.com/microsoft/PowerToys/issues/1468
+            // Mitigate the following GitHub issue: https://github.com/microsoft/PowerToys/issues/1468
             GC.Collect();
         }