Bump ark to 0.1.156

## Positron Notes

### Release Notes

#### New Features

- The variable pane now supports labels from the {haven} package
(#5327.

- The variable pane has improved support for formulas
(#4119).

#### Bug Fixes

- Assignments in function calls (e.g. `list(x <- 1)`) are now detected
by the missing symbol linter to avoid annoying false positive
diagnostics (#3048). The downside is that this causes
false negatives when the assignment happens in a call with local scope,
e.g. in `local()` or `test_that()`. In these cases the nested
assignments will incorrectly overlast the end of the call. We prefer to
be overly permissive than overly cautious in these matters.

- The following environment variables are now set in the same way that R
does:

  - `R_SHARE_DIR`
  - `R_INCLUDE_DIR`
  - `R_DOC_DIR`

  This solves a number of problems in situations that depend on these
variables being defined
(#3637).

extensions/positron-r/package.json

@@ -667,7 +667,7 @@
   },
   "positron": {
     "binaryDependencies": {
-      "ark": "0.1.155"
+      "ark": "0.1.156"
     },
     "minimumRVersion": "4.2.0",
     "minimumRenvVersion": "1.0.9"