Fixed a code issue with static field not being initialized for a smal…

…l amount of time.

API/Services/Tasks/VersionUpdaterService.cs

@@ -67,7 +67,7 @@ public partial class VersionUpdaterService : IVersionUpdaterService
 
     [GeneratedRegex(@"^\n*(.*?)\n+#{1,2}\s", RegexOptions.Singleline)]
     private static partial Regex BlogPartRegex();
-    private static string _cacheFilePath;
+    private readonly string _cacheFilePath;
     private static readonly TimeSpan CacheDuration = TimeSpan.FromHours(1);
 
     public VersionUpdaterService(ILogger<VersionUpdaterService> logger, IEventHub eventHub, IDirectoryService directoryService)
@@ -305,7 +305,7 @@ public async Task<IList<UpdateNotificationDto>> GetAllReleases(int count = 0)
         return updateDtos;
     }
 
-    private static async Task<IList<UpdateNotificationDto>?> TryGetCachedReleases()
+    private async Task<IList<UpdateNotificationDto>?> TryGetCachedReleases()
     {
         if (!File.Exists(_cacheFilePath)) return null;
 
@@ -492,7 +492,7 @@ private static string CleanSectionItem(string item)
         return item;
     }
 
-    sealed class PullRequestInfo
+    private sealed class PullRequestInfo
     {
         public required string Title { get; init; }
         public required string Body { get; init; }
@@ -501,25 +501,25 @@ sealed class PullRequestInfo
         public required int Number { get; init; }
     }
 
-    sealed class CommitInfo
+    private sealed class CommitInfo
     {
         public required string Sha { get; init; }
         public required CommitDetail Commit { get; init; }
         public required string Html_Url { get; init; }
     }
 
-    sealed class CommitDetail
+    private sealed class CommitDetail
     {
         public required string Message { get; init; }
         public required CommitAuthor Author { get; init; }
     }
 
-    sealed class CommitAuthor
+    private sealed class CommitAuthor
     {
         public required string Date { get; init; }
     }
 
-    sealed class NightlyInfo
+    private sealed class NightlyInfo
     {
         public required string Version { get; init; }
         public required int PrNumber { get; init; }