fix: ignore implicit workspace for whoami

[nlf]

this was left respecting the workspace due to concerns about configs in the workspaces affecting the command, but configs in workspaces are explicitly ignored unless you disable workspaces entirely so that concern should have no impact here.

References

[npm-robot]

no statistically significant performance changes detected

timing results

app-large	clean	lock-only	cache-only	cache-only peer-deps	modules-only	no-lock	no-cache	no-modules	no-clean	no-clean audit
npm@8	54.876 ±5.74	31.538 ±0.15	28.742 ±13.90	21.123 ±0.67	3.120 ±0.02	3.161 ±0.00	2.724 ±0.17	12.090 ±0.07	2.513 ±0.04	3.595 ±0.07
#4493	50.082 ±2.14	31.748 ±0.06	29.934 ±16.09	21.923 ±0.96	3.286 ±0.05	3.142 ±0.02	2.602 ±0.04	12.439 ±0.02	2.537 ±0.05	3.732 ±0.11

app-medium	clean	lock-only	cache-only	cache-only peer-deps	modules-only	no-lock	no-cache	no-modules	no-clean	no-clean audit
npm@8	37.048 ±3.12	24.652 ±0.11	13.897 ±0.00	14.782 ±0.45	2.858 ±0.03	2.832 ±0.04	2.495 ±0.05	9.205 ±0.05	2.296 ±0.02	3.325 ±0.10
#4493	39.834 ±1.86	24.508 ±0.11	13.876 ±0.02	15.276 ±0.27	2.874 ±0.03	2.926 ±0.01	2.511 ±0.01	9.345 ±0.07	2.376 ±0.13	3.299 ±0.07