pinned the ef version in Dockerfile

.DockerIgnore

@@ -1,3 +1,4 @@
 appsettings.json
-**/bin/
-**/obj/
+**/bin/**
+**/obj/**
+**/efbundle

Dockerfile

@@ -17,7 +17,7 @@ RUN dotnet publish -o build
 RUN ls build
 
 FROM build as ef
-RUN dotnet tool install dotnet-ef --tool-path /usr/bin
+RUN dotnet tool install dotnet-ef --tool-path /usr/bin --version 7.0.8
 RUN dotnet ef migrations bundle --project "Newsbot.Collector.Database"
 
 FROM mcr.microsoft.com/dotnet/aspnet:7.0.3 as app