Added TTY support for --exec

--exec now uses the shell script to execute commands instead of Go; this enables TTY applications to work as expected.

ExportSSOToken Configuration and --export-sso-token Flag

@cedieio has introduced the --export-sso-token flag, which exports the SSO token to ~/.aws/sso/cache. The ExportSSOToken configuration automatically exports the SSO token by default.

What's Changed

• Allow access token to be exported to plain text on ~/.aws/sso/cache by @cedieio in #518
• fix(fish_alias): fix assume script path for fish alias for brew by @Mallear in #561
• support exec using shell script for TTY applications by @JoshuaWilkes in #549
• Ensure proper initialization of profiles with source_profile by @XargsUK in #559
• Do not overwrite AWS config when sync fails by @sosheskaz in #569
• 🐛 Fix SSO token lookup keys by @cedieio in #565
• 🔧 Add ExportSSOToken config by @cedieio in #566

New Contributors

• @cedieio made their first contribution in #518
• @Mallear made their first contribution in #561
• @XargsUK made their first contribution in #559

Full Changelog: v0.20.3...v0.20.4