Remove unused target frameworks from EF Core persistence project files

Simplified the EF Core project files by eliminating redundant `net9.0` and `net10.0` target frameworks.

Author: sfmskywalker

src/modules/Elsa.Persistence.EFCore.MySql/Elsa.Persistence.EFCore.MySql.csproj

@@ -1,7 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
     <PropertyGroup>
-        <TargetFrameworks>net8.0;net9.0;net10.0</TargetFrameworks>
         <Description>
             Provides MySQL EF Core migrations for various modules.
         </Description>

src/modules/Elsa.Persistence.EFCore.Oracle/Elsa.Persistence.EFCore.Oracle.csproj

@@ -1,7 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
     <PropertyGroup>
-        <TargetFrameworks>net8.0;net9.0;net10.0</TargetFrameworks>
         <Description>
             Provides Oracle EF Core migrations for various modules.
         </Description>

src/modules/Elsa.Persistence.EFCore.PostgreSql/Elsa.Persistence.EFCore.PostgreSql.csproj

@@ -1,7 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
     <PropertyGroup>
-        <TargetFrameworks>net8.0;net9.0;net10.0</TargetFrameworks>
         <Description>
             Provides PostgreSQL EF Core migrations for various modules.
         </Description>

src/modules/Elsa.Persistence.EFCore.SqlServer/Elsa.Persistence.EFCore.SqlServer.csproj

@@ -1,7 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
     <PropertyGroup>
-        <TargetFrameworks>net8.0;net9.0;net10.0</TargetFrameworks>
         <Description>
             Provides SQL Server EF Core migrations for various modules.
         </Description>

src/modules/Elsa.Persistence.EFCore.Sqlite/Elsa.Persistence.EFCore.Sqlite.csproj

@@ -1,7 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
     <PropertyGroup>
-        <TargetFrameworks>net8.0;net9.0;net10.0</TargetFrameworks>
         <Description>
             Provides SQLite EF Core migrations for various modules.
         </Description>