Release ptr which get from CoCreateInstance to prevent memory leak (#39898)

<!-- Enter a brief description/summary of your PR here. What does it
fix/what does it change/how was it tested (even manually, if necessary)?
-->
## Summary of the Pull Request
We need to release it manually.

<!-- Please review the items on the PR checklist before submitting-->
## PR Checklist

- [ ] **Closes:** #xxx
- [ ] **Communication:** I've discussed this with core contributors
already. If work hasn't been agreed, this work might be rejected
- [ ] **Tests:** Added/updated and all pass
- [ ] **Localization:** All end user facing strings can be localized
- [ ] **Dev docs:** Added/updated
- [ ] **New binaries:** Added on the required places
- [ ] [JSON for
signing](https://github.com/microsoft/PowerToys/blob/main/.pipelines/ESRPSigning_core.json)
for new binaries
- [ ] [WXS for
installer](https://github.com/microsoft/PowerToys/blob/main/installer/PowerToysSetup/Product.wxs)
for new binaries and localization folder
- [ ] [YML for CI
pipeline](https://github.com/microsoft/PowerToys/blob/main/.pipelines/ci/templates/build-powertoys-steps.yml)
for new test projects
- [ ] [YML for signed
pipeline](https://github.com/microsoft/PowerToys/blob/main/.pipelines/release.yml)
- [ ] **Documentation updated:** If checked, please file a pull request
on [our docs
repo](https://github.com/MicrosoftDocs/windows-uwp/tree/docs/hub/powertoys)
and link it here: #xxx

<!-- Provide a more detailed description of the PR, other things fixed
or any additional comments/features here -->
## Detailed Description of the Pull Request / Additional comments

<!-- Describe how you validated the behavior. Add automated tests
wherever possible, but list manual validation steps taken as well -->
## Validation Steps Performed

---------

Co-authored-by: Yu Leng <yuleng@microsoft.com>

src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/Indexer/DataSourceManager.cs

@@ -53,6 +53,11 @@ internal static class DataSourceManager
 
         _dataSource.Initialize();
 
+        if (dataSourceObjPtr != IntPtr.Zero)
+        {
+            Marshal.Release(dataSourceObjPtr);
+        }
+
         return true;
     }
 }

src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/Indexer/Utils/QueryStringBuilder.cs

@@ -30,8 +30,9 @@ internal sealed partial class QueryStringBuilder
         if (queryHelper == null)
         {
             ComWrappers cw = new StrategyBasedComWrappers();
+            var searchManagerPtr = IntPtr.Zero;
 
-            var hr = NativeMethods.CoCreateInstance(ref Unsafe.AsRef(in NativeHelpers.CsWin32GUID.CLSIDSearchManager), IntPtr.Zero, NativeHelpers.CLSCTXINPROCALL, ref Unsafe.AsRef(in NativeHelpers.CsWin32GUID.IIDISearchManager), out var searchManagerPtr);
+            var hr = NativeMethods.CoCreateInstance(ref Unsafe.AsRef(in NativeHelpers.CsWin32GUID.CLSIDSearchManager), IntPtr.Zero, NativeHelpers.CLSCTXINPROCALL, ref Unsafe.AsRef(in NativeHelpers.CsWin32GUID.IIDISearchManager), out searchManagerPtr);
             if (hr != 0)
             {
                 throw new ArgumentException($"Failed to create SearchManager instance. HR: 0x{hr:X}");
@@ -51,6 +52,11 @@ internal sealed partial class QueryStringBuilder
                 throw new ArgumentException($"Failed to get catalog manager for {SystemIndex}");
             }
 
+            if (searchManagerPtr != IntPtr.Zero)
+            {
+                Marshal.Release(searchManagerPtr);
+            }
+
             queryHelper = catalogManager.GetQueryHelper();
             if (queryHelper == null)
             {