chore: cherry-pick changes from java-spanner post code migration#12213

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chingor13 merged 4 commits intomainfrom

cherry-pick-java-spanner

Mar 26, 2026

Commits on Mar 26, 2026

feat: Switch Eef metrics to using built in open telemetry (#4385)

kinsaurralde
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chingor13
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chore: add routing hints and cache updates for begin/commit (#4392)

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chingor13
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chore: preserve default TLS authority for bypass-routed channels (#4396)

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chingor13
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chore(spanner): bump versions to 6.113.1-SNAPSHOT
chingor13
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