wiki.eclipse.org links are outdated

wiki.eclipse.org is being phased out. See https://gitlab.eclipse.org/eclipsefdn/helpdesk/-/wikis/Wiki-shutdown-plan. At some point (2026) these will become unavailable. We should update the links.

• dependency-upgrades.asciidoc points to https://wiki.eclipse.org/Simultaneous_Release. (!830 (merged))
• org.eclipse.escet.common.app.framework.console.Console points to http://wiki.eclipse.org/FAQ_How_do_I_write_to_the_console_from_a_plug-in%3F. (!854 (merged))
• release-process.asciidoc points to https://wiki.eclipse.org/IT_Infrastructure_Doc. (!854 (merged))
• release-process.asciidoc points to https://wiki.eclipse.org/index.php?title=Equinox/p2/p2.mirrorsURL&diff=444984&oldid=370895. (!854 (merged))
• Once all these have been replaced properly, search the entire repository again for wiki.eclipse.org. (there are none)