This commit changes "Deno.cwd()" (as well as "process.cwd()") to no
longer require full "--allow-read" permission. This change was meant to be done
in Deno 2.0.0, but somehow it slipped. Requiring full read permission
just to read the CWD is a mistake, because CWD can already be obtained
with no permission by throwing an error in JS and inspecting its stack.
Fixes https://github.com/denoland/deno/issues/27110
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Co-authored-by: Bartek Iwańczuk <biwanczuk@gmail.com>
