go.mod+golanci+workflows: bump go version to 1.24.6

[mohamedawnallah]

Motivation and Context

Motivated by @guggero's comment #1043 (comment)

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[mohamedawnallah]

Error: wallet/wallet.go:4094:3: right hand must be only type assertion (forcetypeassert)
privKey, err = addr.(waddrmgr.ManagedPubKeyAddress).PrivKey()

This linting failure mostly appears as false positive. I've tried make lint and all passes in addition that line of code not even exist in the codebase!

EDIT:
nvm just need to rebase on the upstream master branch

[mohamedawnallah]

cc: @yyforyongyu

[mohamedawnallah]

Rebased on master branch. It is now ready for review

[yyforyongyu]

looks like this will break its usage in lnd?

[GustavoStingelin]

I think LND should also be updated, since it is primarily a daemon.

[GustavoStingelin]

tACK