win_package: remove case sensitive check for msi extension (#34476)

(cherry picked from commit da69f5aeae)

lib/ansible/modules/windows/win_package.ps1

@@ -231,7 +231,7 @@ Function Get-ProgramMetadata($state, $path, $product_id, $credential, $creates_p
 
     # set the location type and validate the path
     if ($path -ne $null) {
-        if ($path.EndsWith(".msi")) {
+        if ($path.EndsWith(".msi", [System.StringComparison]::CurrentCultureIgnoreCase)) {
             $metadata.msi = $true
         } else {
             $metadata.msi = $false

test/integration/targets/win_package/tasks/msi_tests.yml

@@ -267,7 +267,7 @@
 
 - name: install local msi with arguments (check mode)
   win_package:
-    path: '{{test_win_package_path}}\good.msi'
+    path: '{{test_win_package_path}}\good.MSI'
     state: present
     arguments: ADDLOCAL=Cow
   register: install_msi_argument_check
@@ -293,7 +293,7 @@
 
 - name: install local msi with arguments
   win_package:
-    path: '{{test_win_package_path}}\good.msi'
+    path: '{{test_win_package_path}}\good.MSI'
     state: present
     arguments: ADDLOCAL=Cow
   register: install_msi_argument
@@ -319,7 +319,7 @@
 
 - name: install local msi with arguments (idempotent)
   win_package:
-    path: '{{test_win_package_path}}\good.msi'
+    path: '{{test_win_package_path}}\good.MSI'
     state: present
     arguments: ADDLOCAL=Cow
   register: install_msi_argument_again