.Net: Change version suffix for memory connectors which implement IVe…

…ctorStore (#9276)

### Motivation and Context

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### Description

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### Contribution Checklist

<!-- Before submitting this PR, please make sure: -->

- [ ] The code builds clean without any errors or warnings
- [ ] The PR follows the [SK Contribution
Guidelines](https://github.com/microsoft/semantic-kernel/blob/main/CONTRIBUTING.md)
and the [pre-submission formatting
script](https://github.com/microsoft/semantic-kernel/blob/main/CONTRIBUTING.md#development-scripts)
raises no violations
- [ ] All unit tests pass, and I have added new tests where possible
- [ ] I didn't break anyone 😄

dotnet/src/Connectors/Connectors.Memory.AzureAISearch/Connectors.Memory.AzureAISearch.csproj

@@ -4,7 +4,7 @@
     <AssemblyName>Microsoft.SemanticKernel.Connectors.AzureAISearch</AssemblyName>
     <RootNamespace>Microsoft.SemanticKernel.Connectors.AzureAISearch</RootNamespace>
     <TargetFrameworks>net8.0;netstandard2.0</TargetFrameworks>
-    <VersionSuffix>alpha</VersionSuffix>
+    <VersionSuffix>preview</VersionSuffix>
     <!--NU5104: A stable release of a package should not have a prerelease dependency.-->
     <NoWarn>$(NoWarn);NU5104</NoWarn>
   </PropertyGroup>

dotnet/src/Connectors/Connectors.Memory.AzureCosmosDBMongoDB/Connectors.Memory.AzureCosmosDBMongoDB.csproj

@@ -6,7 +6,7 @@
     <RootNamespace>$(AssemblyName)</RootNamespace>
     <TargetFrameworks>net8.0;netstandard2.0</TargetFrameworks>
     <NoWarn>$(NoWarn);NU5104;SKEXP0001,SKEXP0010</NoWarn>
-    <VersionSuffix>alpha</VersionSuffix>
+    <VersionSuffix>preview</VersionSuffix>
   </PropertyGroup>
 
   <!-- IMPORT NUGET PACKAGE SHARED PROPERTIES -->

dotnet/src/Connectors/Connectors.Memory.AzureCosmosDBNoSQL/Connectors.Memory.AzureCosmosDBNoSQL.csproj

@@ -6,7 +6,7 @@
     <RootNamespace>$(AssemblyName)</RootNamespace>
     <TargetFrameworks>net8.0;netstandard2.0</TargetFrameworks>
     <NoWarn>$(NoWarn);NU5104;SKEXP0001,SKEXP0010</NoWarn>
-    <VersionSuffix>alpha</VersionSuffix>
+    <VersionSuffix>preview</VersionSuffix>
   </PropertyGroup>
 
   <!-- IMPORT NUGET PACKAGE SHARED PROPERTIES -->

dotnet/src/Connectors/Connectors.Memory.InMemory/Connectors.Memory.InMemory.csproj

@@ -4,7 +4,7 @@
     <AssemblyName>Microsoft.SemanticKernel.Connectors.InMemory</AssemblyName>
     <RootNamespace>$(AssemblyName)</RootNamespace>
     <TargetFrameworks>net8.0;netstandard2.0</TargetFrameworks>
-    <VersionSuffix>alpha</VersionSuffix>
+    <VersionSuffix>preview</VersionSuffix>
   </PropertyGroup>
 
   <!-- IMPORT NUGET PACKAGE SHARED PROPERTIES -->

dotnet/src/Connectors/Connectors.Memory.Pinecone/Connectors.Memory.Pinecone.csproj

@@ -5,7 +5,7 @@
     <AssemblyName>Microsoft.SemanticKernel.Connectors.Pinecone</AssemblyName>
     <RootNamespace>$(AssemblyName)</RootNamespace>
     <TargetFrameworks>net8.0;netstandard2.0</TargetFrameworks>
-    <VersionSuffix>alpha</VersionSuffix>
+    <VersionSuffix>preview</VersionSuffix>
   </PropertyGroup>
 
   <!-- IMPORT NUGET PACKAGE SHARED PROPERTIES -->

dotnet/src/Connectors/Connectors.Memory.Qdrant/Connectors.Memory.Qdrant.csproj

@@ -5,7 +5,7 @@
     <AssemblyName>Microsoft.SemanticKernel.Connectors.Qdrant</AssemblyName>
     <RootNamespace>$(AssemblyName)</RootNamespace>
     <TargetFrameworks>net8.0;netstandard2.0</TargetFrameworks>
-    <VersionSuffix>alpha</VersionSuffix>
+    <VersionSuffix>preview</VersionSuffix>
   </PropertyGroup>
 
   <!-- IMPORT NUGET PACKAGE SHARED PROPERTIES -->

dotnet/src/Connectors/Connectors.Memory.Redis/Connectors.Memory.Redis.csproj

@@ -5,7 +5,7 @@
     <AssemblyName>Microsoft.SemanticKernel.Connectors.Redis</AssemblyName>
     <RootNamespace>$(AssemblyName)</RootNamespace>
     <TargetFrameworks>net8.0;netstandard2.0</TargetFrameworks>
-    <VersionSuffix>alpha</VersionSuffix>
+    <VersionSuffix>preview</VersionSuffix>
   </PropertyGroup>
 
   <!-- IMPORT NUGET PACKAGE SHARED PROPERTIES -->

dotnet/src/Connectors/Connectors.Memory.Weaviate/Connectors.Memory.Weaviate.csproj

@@ -5,7 +5,7 @@
     <AssemblyName>Microsoft.SemanticKernel.Connectors.Weaviate</AssemblyName>
     <RootNamespace>$(AssemblyName)</RootNamespace>
     <TargetFrameworks>net8.0;netstandard2.0</TargetFrameworks>
-    <VersionSuffix>alpha</VersionSuffix>
+    <VersionSuffix>preview</VersionSuffix>
   </PropertyGroup>
 
   <!-- IMPORT NUGET PACKAGE SHARED PROPERTIES -->