chore(deps): bump cloud.google.com/go/spanner from 1.47.0 to 1.49.0

Bumps [cloud.google.com/go/spanner](https://github.com/googleapis/google-cloud-go) from 1.47.0 to 1.49.0.
- [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/v1.47.0...spanner/v1.49.0)

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

Signed-off-by: dependabot[bot] <support@github.com>

go.mod

@@ -4,7 +4,7 @@ go 1.20
 
 require (
 	cloud.google.com/go v0.110.7
-	cloud.google.com/go/spanner v1.47.0
+	cloud.google.com/go/spanner v1.49.0
 	github.com/google/go-cmp v0.5.9
 	github.com/stoewer/go-strcase v1.3.0
 	go.einride.tech/aip v0.62.0

go.sum

@@ -10,8 +10,8 @@ cloud.google.com/go/iam v1.1.1 h1:lW7fzj15aVIXYHREOqjRBV9PsH0Z6u8Y46a1YGvQP4Y=
 cloud.google.com/go/iam v1.1.1/go.mod h1:A5avdyVL2tCppe4unb0951eI9jreack+RJ0/d+KUZOU=
 cloud.google.com/go/longrunning v0.5.1 h1:Fr7TXftcqTudoyRJa113hyaqlGdiBQkp0Gq7tErFDWI=
 cloud.google.com/go/longrunning v0.5.1/go.mod h1:spvimkwdz6SPWKEt/XBij79E9fiTkHSQl/fRUUQJYJc=
-cloud.google.com/go/spanner v1.47.0 h1:aqiMP8dhsEXgn9K5EZBWxPG7dxIiyM2VaikqeU4iteg=
-cloud.google.com/go/spanner v1.47.0/go.mod h1:IXsJwVW2j4UKs0eYDqodab6HgGuA1bViSqW4uH9lfUI=
+cloud.google.com/go/spanner v1.49.0 h1:+HY8C4uztU7XyLz3xMi/LCXdetLEOExhvRFJu2NiVXM=
+cloud.google.com/go/spanner v1.49.0/go.mod h1:eGj9mQGK8+hkgSVbHNQ06pQ4oS+cyc4tXXd6Dif1KoM=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
 github.com/antihax/optional v1.0.0/go.mod h1:uupD/76wgC+ih3iEmQUL+0Ugr19nfwCT1kdvxnR2qWY=
 github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=