Bump axum from 0.7.5 to 0.7.6 in /pgo/server

[dependabot[bot]]

Bumps axum from 0.7.5 to 0.7.6.

Release notes

Sourced from axum's releases.

axum-extra - v0.7.6

• fixed: Remove unused dependency (#2135)

#2135: tokio-rs/axum#2135

axum - v0.7.6

• change: Avoid cloning Arc during deserialization of Path
• added: axum::serve::Serve::tcp_nodelay and axum::serve::WithGracefulShutdown::tcp_nodelay (#2653)
• added: Router::has_routes function (#2790)
• change: Update tokio-tungstenite to 0.23 (#2841)
• added: Serve::local_addr and WithGracefulShutdown::local_addr functions (#2881)

#2653: tokio-rs/axum#2653 #2790: tokio-rs/axum#2790 #2841: tokio-rs/axum#2841 #2881: tokio-rs/axum#2881

Commits

• a73dab4 Bump versions
• f172389 Avoid reallocation for String body extraction (#2857)
• 0ba73b5 Implement FromRequest for BytesMut (#2583)
• 88de9fc ci: Add more allowances for multiple version of the same crate
• d2d74f6 Upgrade tower and tower-http
• f446b42 chore: Add missing symbol (#2909)
• de9290a Add more must_use attributes (#2846)
• 8b1cad6 Bump nightly version used for ui tests (#2805)
• 6efcb75 Fix warnings and errors from beta Rust (#2904)
• 1ac617a Add local_addr for Serve and WithGracefulShutdown (#2881)
• Additional commits viewable in compare view

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[dependabot[bot]]

Looks like axum is up-to-date now, so this is no longer needed.