HEALTHCHECK's --retries has the wrong documentation in its completion item

[rcjsuen]

FROM node
HEALTHCHECK --

If you invoke content assist at the end of the second line, you will get the four flags that a HEALTHCHECK instruction supports. However, the documentation for --retries is the same as --interval due to a copy paste error.

https://github.com/rcjsuen/dockerfile-language-server-nodejs/blob/704df58ceb273262a69155742fd3e63d501647cc/src/dockerAssist.ts#L539-L544