Update stale workflow settings and add to CI solution

Updated the stale workflow settings in the .github directory to exempt all issue milestones and assignees. Also, the stale.yml workflow file was added to the CI solution to ensure it is included in future testing and build processes.

Author: arturcic

.github/workflows/stale.yml

@@ -32,9 +32,9 @@ jobs:
           days-before-issue-stale: 90
           days-before-issue-close: 30
           # skip issues that have a milestone
-          exempt-issue-milestones: true
+          exempt-all-issue-milestones: true
           # skip those that are assigned
-          exempt-issue-assignees: true
+          exempt-all-issue-assignees: true
           # skip issues with label 'pinned'
           exempt-issue-labels: pinned,security,failing test case,help wanted
 

build/CI.sln

@@ -38,6 +38,7 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "workflows", "workflows", "{
 		..\.github\workflows\_prepare.yml = ..\.github\workflows\_prepare.yml
 		..\.github\workflows\_publish.yml = ..\.github\workflows\_publish.yml
 		..\.github\workflows\_unit_tests.yml = ..\.github\workflows\_unit_tests.yml
+		..\.github\workflows\stale.yml = ..\.github\workflows\stale.yml
 	EndProjectSection
 EndProject
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "actions", "actions", "{A9B92261-AB9C-47D6-A8A7-616A5A62B063}"