fix: Prepend Docker Hub namespace to repository#1287

HofmeisterAn merged 2 commits intodeveloptestcontainers/testcontainers-dotnet:developfrom

bugfix/1286-remove-namespace-from-docker-hub-substitutiontestcontainers/testcontainers-dotnet:bugfix/1286-remove-namespace-from-docker-hub-substitutionCopy head branch name to clipboard