making compatible with older versions of dplyr

[jayhesselberth]

This actually addresses changes in the new dplyr. Could you use the approach here:

https://github.com/rnabioco/valr/commit/0006d38a6704899fcec2fdc626710d6ee2b07ca6

If left as is, we'd have to increase the dplyr version requirement.

[kwells4]

This now includes a dplyr version check before running left_join. The relationship argument was gained in version 1.1.1. I've tested on dplyr version 1.1.2 and 1.1.0 (where it previously gave the error about the relationship argument)

[jayhesselberth]

It's probably easier to just take a dependency on dplyr 1.1.1, most people should be keeping current at this point.

[jayhesselberth]

I.e., change this:

https://github.com/rnabioco/djvdj/blob/4f27269103a3ed32d5e9149560b9ff38ddc9a047/DESCRIPTION#L30

to

dplyr (>= 1.1.1),