fix(prof): combine thread timeout errors properly

[morrisonlevi]

Description

I used the wrong combinator before, need to use Result::and. From Result::and documentation:

let x: Result<u32, &str> = Ok(2);
let y: Result<&str, &str> = Err("late error");
assert_eq!(x.and(y), Err("late error"));

let x: Result<u32, &str> = Err("early error");
let y: Result<&str, &str> = Ok("foo");
assert_eq!(x.and(y), Err("early error"));

let x: Result<u32, &str> = Err("not a 2");
let y: Result<&str, &str> = Err("late error");
assert_eq!(x.and(y), Err("not a 2"));

let x: Result<u32, &str> = Ok(2);
let y: Result<&str, &str> = Ok("different result type");
assert_eq!(x.and(y), Ok("different result type"));

This is a follow-up to #3075.

Reviewer checklist

• Test coverage seems ok.
• Appropriate labels assigned.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 74.74%. Comparing base (b8e8454) to head (879ec01).

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #3081      +/-   ##
============================================
+ Coverage     74.48%   74.74%   +0.25%     
  Complexity     2790     2790              
============================================
  Files           112      112              
  Lines         11042    11042              
============================================
+ Hits           8225     8253      +28     
+ Misses         2817     2789      -28     

Flag	Coverage Δ
tracer-php	74.74% <ø> (+0.25%)	⬆️

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see 7 files with indirect coverage changes

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[pr-commenter]

Benchmarks [ profiler ]

Benchmark execution time: 2025-02-11 16:57:15

Comparing candidate commit 879ec01 in PR branch levi/fix-dlclose with baseline commit b8e8454 in branch master.

Found 0 performance improvements and 0 performance regressions! Performance is the same for 28 metrics, 8 unstable metrics.