* Add support for Managed Identity auth for physical/Azure

Obtain OAuth token from IMDS to allow for access to Azure Blob with
short-lived dynamic credentials

Fix #7322

* add tests & update docs/dependencies

Updated the `Serve` function so these can be added back into Vault

This also temporarily disables couchbase, elasticsearch, and
mongodbatlas because the `Serve` function needs to change signatures
and those plugins are vendored in from external repos, causing problems
when building.

Fixes oidc config UI, and adds EdDSA (ed25519) to supported algorithms

* backport VAULT-672

* backport VAULT-672

* go mod tidy

* go mod tidy

* add back indirect import

* replace go mod and go sum with master version

* go mod vendor

* more go mod vendor
Co-authored-by: Hridoy Roy <hridoyroy@Hridoys-MBP.hitronhub.home>
Co-authored-by: Hridoy Roy <hridoyroy@Hridoys-MacBook-Pro.local>

This reverts commit ee6391b6.

* Migrate internalshared out

* fix merge issue

* fix merge issue

* go mod vendor
Co-authored-by: Brian Kassouf <bkassouf@hashicorp.com>

* Update couchbase plugin to use v5 dbplugin

The azure sdk for go is maintenance-only for storage, see https://github.com/Azure/azure-sdk-for-go/tree/master/storage\#azure-storage-sdk-for-go-preview
Migrate to new azure-storage-blob-go SDK
Minor test improvements

Fix #9661

* Implement raft peers metric

* Remove old peers metric

* Update vault raft dependency

* Add peer_id docs

Adds debug and warn logging around AWS credential chain generation,
specifically to help users debugging auto-unseal problems on AWS, by
logging which role is being used in the case of a webidentity token.

Adds a deferred call to flush the log output as well, to ensure logs
are output in the event of an initialization failure.

Upgrade bolt to get https://github.com/etcd-io/bbolt/commit/543c40ab4152935b36df4fba524e741046a359d4 to avoid panics in tests. (#9964)

* Add new Database v5 interface with gRPC client & server
This is primarily for making password policies available to the DB engine, however since there are a number of other problems with the current interface this is getting an overhaul to a more gRPC request/response approach for easier future compatibility.

This is the first in a series of PRs to add support for password policies in the combined database engine

* Point to the public, recent version of vault-plugin-auth-gcp

* Vendor the subsequent changes

Support testing of CI and GitHub actions by creating a real dependency
between Vault and a plugin. The plugin itself is a no-op.

* Update hashicorp/vault-plugin-secrets-azure to v0.6.2

* update go mod vendor

* Update OpenLDAP secrets plugin 0.1.4 -> 0.1.5

* go mod vendor and tidy