Fix node version to 16

See merge request astron-sdc/esap-gui!105

Temporary workaround for:

  Error message "error:0308010C:digital envelope routines::unsupported"

See e.g. discussion at https://stackoverflow.com/questions/69692842/error-message-error0308010cdigital-envelope-routinesunsupported

This is intended to solve the immediate problem of a broken build; when we are
back up and running, I'll ticket an upgrade to more recent node.

Fix archive images.

See merge request astron-sdc/esap-gui!103

Insert version string on build

Closes esap-general#198

See merge request astron-sdc/esap-gui!104

Attach  to use legacy scp protocol

See merge request astron-sdc/esap-gui!101

Properly encode URL components

See merge request astron-sdc/esap-gui!100

fixed GUI batch page formatting issue 194

See merge request astron-sdc/esap-gui!99

Otherwise, special characters (e.g. `+`) in the idaSystemURL will be
interpreted as encoded data and converted to spaces. Which means that, say,
`git+https` will end up as `git https`. And then Bad Stuff (tm) happens.

130 inc batch async

See merge request astron-sdc/esap-gui!96

Try fixing job submission auth

See merge request astron-sdc/esap-gui!98

Feature/149 jobs frontend

See merge request astron-sdc/esap-gui!93

103 rucio next page

See merge request astron-sdc/esap-gui!94

Merge branch '103_RucioNextPage' of https://git.astron.nl/astron-sdc/esap-gui into 103_RucioNextPage