wirespider install on Ubuntu 24.04 fails due to invalid keys

[bmullan]

@returntoreality

here is a cut & paste of errors:

Error: https://sfttech.github.io/wirespider/repo stable InRelease
The following signatures were invalid: EXPKEYSIG E705F2F70763280F Wirespider APT Key wirespider@sft.mx
Fetched 0 Bytes in 0s (0 bytes/s)
Warning: GPG error: https://sfttech.github.io/wirespider/repo stable InRelease: The following signatures were invalid: EXPKEYSIG E705F2F70763280F Wirespider APT Key wirespider@sft.mx
Error: The repository 'https://sfttech.github.io/wirespider/repo stable InRelease' is not signed.
Updated: https://sfttech.github.io/wirespider/repo stable InRelease [2 KB]
Error: https://sfttech.github.io/wirespider/repo stable InRelease
The following signatures were invalid: EXPKEYSIG E705F2F70763280F Wirespider APT Key wirespider@sft.mx
No Change: http://us.archive.ubuntu.com/ubuntu noble InRelease
No Change: http://security.ubuntu.com/ubuntu noble-security InRelease
No Change: http://us.archive.ubuntu.com/ubuntu noble-updates InRelease
No Change: http://us.archive.ubuntu.com/ubuntu noble-backports InRelease
Fetched 0 Bytes in 0s (0 bytes/s)
Error: The repository 'https://sfttech.github.io/wirespider/repo stable InRelease' is not signed.
Warning: GPG error: https://sfttech.github.io/wirespider/repo stable InRelease: The following signatures were invalid: EXPKEYSIG E705F2F70763280F Wirespider APT Key wirespider@sft.mx