weechat: fix libcjson dependency spec

[l2dy]

Description

Could not open /opt/local/lib/libcjson.1.dylib: Error opening or reading file (referenced from /opt/local/lib/weechat/plugins/relay.so)

Type(s)

• bugfix
• enhancement
• security fix

Tested on

macOS 15.2 24C101 x86_64
Xcode 16.2 16C5032a

Verification

Have you

• followed our Commit Message Guidelines?
• squashed and minimized your commits?
• checked that there aren't other open pull requests for the same change?
• [N/A] referenced existing tickets on Trac with full URL in commit message?
• checked your Portfile with port lint?
• tried existing tests with sudo port test?
• tried a full install with sudo port -vs install?
• tested basic functionality of all binary files?
• checked that the Portfile's most important variants haven't been broken?

[macportsbot]

Notifying maintainers:
@cardi for port weechat.