go: bump github.com/oasisprotocol/oasis-core/go from 0.2300.5 to 0.2300.6

[dependabot[bot]]

Bumps github.com/oasisprotocol/oasis-core/go from 0.2300.5 to 0.2300.6.

Commits

• d0ff059 Merge pull request #5475 from oasisprotocol/kostko/stable/23.0.x/changelog-23...
• 6631564 changelog: Assemble changes for 23.0.6 release
• 17230a5 Merge pull request #5477 from oasisprotocol/peternose/stable/23.0.x/backport-...
• b99fb4a go/p2p/discovery: Close only idle connections to seed node
• 23652ad Merge pull request #5474 from oasisprotocol/kostko/stable/23.0.x/backport-5473
• 6bf094b go/oasis-node: Remove obsolete db section during config migration
• c649264 Merge pull request #5471 from oasisprotocol/ptrus/stable/23.0.x/basckports
• 04d13dd governance: Fix PrettyPrint for ChangeParametersProposal
• 9376ef0 go/tests/txsource: Add roothash to queries workload
• 1ea109c go/roothash: expose PastRoundRoots in client
• Additional commits viewable in compare view

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[pro-wh]

@dependabot rebase

[dependabot[bot]]

Superseded by #490.