v0.39.4

Fixes
 - fix node download link for armv8l (#3102)
 - `nvm exec`: no longer error with '-q: invalid option' for zsh users (#2800)
 - `nvm_print_npm_version`: if `npm` exists but its node crashes, do not print the npm version
 - `nvm_ls_current`: when `node` is present but crashes immediately, echo "none"
 - fix directory traversal when workdir path is not readable (#3080)
 - recognize 32Bit docker container and use x86 arch (#3051)
 - Remove unneeded call to `ls` in `nvm_arch` (#3012)

Perf
 - [Perf] Improve performance of listing aliases (#3060)

Docker
 - [Dockerfile] Update base image from Ubuntu 20.04 to 22.04, cc #2877 (#3078)

Docs
 - [readme] add `nvshim` tool alongside `avn` (#2193)
 - [readme] fix typo in resolv.conf filename (#3135)
 - [readme] Update logo header (#3123)
 - [readme] Add instructions on how to install without editing shell config (#3100)
 - [readme] `cdnvm` function: fix shellcheck errors (#3082)
 - [readme] Update Travis CI badge and link url (#3077)

Miscellaneous
 - [meta] Remove unavailable testing script (#3105)
 - [Dev Deps] update `markdown-link-check`, `semver`
 - [actions] allow nvm to be installed

Tests
 - [add unit tests for `nvm_download_artifact`
 - [`npm bin` has been removed
 - [downgrade python to v2 on travis (#3067)
 - [move install script tests to github actions
 - [improve debug output on failure
 - [force the NVM_DIR to the expected location, for tests
 - [Update urchin repository link (#2989)