Bump cloud.google.com/go/spanner from 1.70.0 to 1.73.0 in /sdks (#33126)

Bumps [cloud.google.com/go/spanner](https://github.com/googleapis/google-cloud-go) from 1.70.0 to 1.73.0.
- [Release notes](https://github.com/googleapis/google-cloud-go/releases)
- [Changelog](https://github.com/googleapis/google-cloud-go/blob/main/CHANGES.md)
- [Commits](googleapis/google-cloud-go@spanner/v1.70.0...spanner/v1.73.0)

---
updated-dependencies:
- dependency-name: cloud.google.com/go/spanner
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

sdks/go.mod

@@ -28,7 +28,7 @@ require (
 	cloud.google.com/go/datastore v1.20.0
 	cloud.google.com/go/profiler v0.4.1
 	cloud.google.com/go/pubsub v1.45.1
-	cloud.google.com/go/spanner v1.70.0
+	cloud.google.com/go/spanner v1.73.0
 	cloud.google.com/go/storage v1.45.0
 	github.com/aws/aws-sdk-go-v2 v1.32.4
 	github.com/aws/aws-sdk-go-v2/config v1.28.4

sdks/go.sum

@@ -542,8 +542,8 @@ cloud.google.com/go/shell v1.6.0/go.mod h1:oHO8QACS90luWgxP3N9iZVuEiSF84zNyLytb+
 cloud.google.com/go/spanner v1.41.0/go.mod h1:MLYDBJR/dY4Wt7ZaMIQ7rXOTLjYrmxLE/5ve9vFfWos=
 cloud.google.com/go/spanner v1.44.0/go.mod h1:G8XIgYdOK+Fbcpbs7p2fiprDw4CaZX63whnSMLVBxjk=
 cloud.google.com/go/spanner v1.45.0/go.mod h1:FIws5LowYz8YAE1J8fOS7DJup8ff7xJeetWEo5REA2M=
-cloud.google.com/go/spanner v1.70.0 h1:nj6p/GJTgMDiSQ1gQ034ItsKuJgHiMOjtOlONOg8PSo=
-cloud.google.com/go/spanner v1.70.0/go.mod h1:X5T0XftydYp0K1adeJQDJtdWpbrOeJ7wHecM4tK6FiE=
+cloud.google.com/go/spanner v1.73.0 h1:0bab8QDn6MNj9lNK6XyGAVFhMlhMU2waePPa6GZNoi8=
+cloud.google.com/go/spanner v1.73.0/go.mod h1:mw98ua5ggQXVWwp83yjwggqEmW9t8rjs9Po1ohcUGW4=
 cloud.google.com/go/speech v1.6.0/go.mod h1:79tcr4FHCimOp56lwC01xnt/WPJZc4v3gzyT7FoBkCM=
 cloud.google.com/go/speech v1.7.0/go.mod h1:KptqL+BAQIhMsj1kOP2la5DSEEerPDuOP/2mmkhHhZQ=
 cloud.google.com/go/speech v1.8.0/go.mod h1:9bYIl1/tjsAnMgKGHKmBZzXKEkGgtU+MpdDPTE9f7y0=