JSON3Ext: Deprecate Dagger.render_logs for :chrome_trace (#604)

Co-authored-by: google-labs-jules[bot] <161369871+google-labs-jules[bot]@users.noreply.github.com>

Author: jpsamaroo

docs/src/logging-visualization.md

@@ -24,7 +24,6 @@ Built-in `IO` support exists for:
 Built-in rendering support exists for:
 - `render_logs(logs, :graphviz)` to generate a graph diagram of executed tasks and their dependencies (requires `GraphViz.jl` to be loaded)
 - `render_logs(logs, :plots_gantt)` to generate a Gantt chart of task execution across all processors (requires `Plots.jl` and `DataFrames.jl` to be loaded)
-- `render_logs(logs, :chrome_trace)` to generate a `String` with chrome-trace formatted task execution timeline
 
 The latter (`MultiEventLog`) allows for continuously rendering logs as they're
 generated, permitting real-time visualization of Dagger's operations. This

ext/JSON3Ext.jl

@@ -80,6 +80,7 @@ function logs_to_chrome_trace(logs::Dict)
 end
 
 function Dagger.render_logs(logs::Dict, ::Val{:chrome_trace})
+    @warn "Dagger.render_logs(logs, :chrome_trace) is deprecated, use Dagger.show_logs(io, logs, :chrome_trace) instead." maxlog=1
     return JSON3.write(logs_to_chrome_trace(logs))
 end