Add "symfony/polyfill-mbstring" as requirement when needed

[stloyd]

Resolves: #1347

Change Log

---

Added

• Add "symfony/polyfill-mbstring" as requirement when needed

Fixed

Changed

Removed

Deprecated

Security

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 83.18%. Comparing base (663198a) to head (e0420e1).
⚠️ Report is 5 commits behind head on 1.x.

Additional details and impacted files

@@            Coverage Diff             @@
##              1.x    #2228      +/-   ##
==========================================
+ Coverage   82.97%   83.18%   +0.20%     
==========================================
  Files        1343     1343              
  Lines       50142    50142              
==========================================
+ Hits        41607    41712     +105     
+ Misses       8535     8430     -105     

Components	Coverage Δ
etl	90.17% <ø> (+0.83%)	⬆️
cli	85.76% <ø> (ø)
lib-array-dot	94.82% <ø> (ø)
lib-azure-sdk	60.01% <ø> (ø)
lib-doctrine-dbal-bulk	95.16% <ø> (ø)
lib-filesystem	83.42% <ø> (ø)
lib-types	88.88% <ø> (+1.50%)	⬆️
lib-parquet	68.25% <ø> (ø)
lib-parquet-viewer	83.04% <ø> (ø)
lib-snappy	90.18% <ø> (ø)
lib-dremel	0.00% <ø> (ø)
lib-postgresql	88.13% <ø> (ø)
lib-telemetry	90.60% <ø> (ø)
bridge-filesystem-async-aws	90.95% <ø> (ø)
bridge-filesystem-azure	89.38% <ø> (ø)
bridge-monolog-http	97.45% <ø> (ø)
bridge-openapi-specification	91.50% <ø> (ø)
symfony-http-foundation	74.11% <ø> (ø)
bridge-psr18-telemetry	100.00% <ø> (ø)
bridge-psr7-telemetry	100.00% <ø> (ø)
bridge-telemetry-otlp	89.29% <ø> (+0.25%)	⬆️
bridge-symfony-http-foundation-telemetry	88.23% <ø> (ø)
bridge-symfony-telemetry-bundle	67.60% <ø> (ø)
adapter-chartjs	84.72% <ø> (ø)
adapter-csv	88.65% <ø> (ø)
adapter-doctrine	92.00% <ø> (ø)
adapter-elasticsearch	92.78% <ø> (ø)
adapter-google-sheet	99.02% <ø> (ø)
adapter-http	67.91% <ø> (ø)
adapter-json	87.61% <ø> (ø)
adapter-logger	47.36% <ø> (ø)
adapter-parquet	79.29% <ø> (ø)
adapter-text	81.25% <ø> (ø)
adapter-xml	82.07% <ø> (ø)
adapter-avro	0.00% <ø> (ø)
adapter-excel	94.02% <ø> (ø)
adapter-postgresql	0.00% <ø> (ø)

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