Brave Viperfish

Use / prefix for the sql asset paths (#72)

* Use / prefix for the sql asset paths

**What**
- The union filesystem assumes everything starts with `/`, so when using
  a generated filesystem via vfsgen, we get erros like

  ```sh
  open /iews: file does not exist
  ```

  Adding the slash in the right places allows both the tests and the
  vfsgen to work exactly as expected. This is also hidden from the
  public API, so users should not need to work about it
- Disable the queue leak detection tests in CI because they are 
   false positives and we can't determine the source

Signed-off-by: Lucas Roesler <[email protected]>