Improve readability of skip warning messages

Add a newline before skip warnings to ensure they appear cleanly
separated from progress bar output, making them much easier to read.

Before: Skip warnings were mixed inline with progress bar
After: Skip warnings appear on clean new lines

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <[email protected]>

Author: ChrisRackauckas

lib/LinearSolveAutotune/src/benchmarking.jl

@@ -148,6 +148,8 @@ function benchmark_algorithms(matrix_sizes, algorithms, alg_names, eltypes;
                     if haskey(blocked_algorithms[string(eltype)], name)
                         max_allowed_size = blocked_algorithms[string(eltype)][name]
                         if n > max_allowed_size
+                            # Clear progress line and show warning on new line
+                            println()  # Ensure we're on a new line
                             @warn "Algorithm $name skipped for size $n (exceeded maxtime on size $max_allowed_size matrix)"
                             # Still need to update progress bar
                             ProgressMeter.next!(progress)