v1.8.1

JuMP v1.8.1

Diff since v1.8.0

Closed issues:

• Error with semicolon/sum in nonlinear constraint (#3224)
• Macro doc in the wrong place (#3225)

Merged pull requests:

• Use and document preference for import MathOptInterface as MOI (#3222) (@odow)
• [docs] remove references to multiobjective optimization being unsupported (#3223) (@odow)
• Fix init kwarg in nonlinear generator expressions (#3226) (@odow)
• [docs] add multiobjective portfolio example (#3227) (@odow)
• Prep for v1.8.1 (#3228) (@odow)
• [docs] refactor some conic tutorials into simple_examples.jl (#3229) (@odow)
• [docs] fix typo in network_flows.jl (#3230) (@odow)
• [docs] add tutorial on parallelism (#3231) (@odow)