bootstrap: add 25.2 bootstrap data

Obtained by running (on release-25.2 branch):
```
./dev build sql-bootstrap-data && bin/sql-bootstrap-data
```

Epic: None
Release note: None

Author: miraradeva

pkg/sql/catalog/bootstrap/BUILD.bazel

@@ -16,6 +16,10 @@ go_library(
         "data/25_1_system.sha256",
         "data/25_1_tenant.keys",
         "data/25_1_tenant.sha256",
+        "data/25_2_system.keys",
+        "data/25_2_system.sha256",
+        "data/25_2_tenant.keys",
+        "data/25_2_tenant.sha256",
     ],
     importpath = "github.com/cockroachdb/cockroach/pkg/sql/catalog/bootstrap",
     visibility = ["//visibility:public"],

pkg/sql/catalog/bootstrap/data/25_2_system.keys

@@ -0,0 +1 @@
+5db98bb882e48d6b9381c75a7a8213b2ad3a985bace0264f52d4680458de7b43

pkg/sql/catalog/bootstrap/data/25_2_system.sha256

@@ -0,0 +1 @@
+9cb2d849f5e6ebe2dee1e29ec12c501bd23795b87886b2ae6183fa6dd62b7d0d

pkg/sql/catalog/bootstrap/data/25_2_tenant.keys

@@ -65,6 +65,13 @@ type initialValuesFactoryFn = func(opts InitialValuesOpts) (
 var initialValuesFactoryByKey = map[clusterversion.Key]initialValuesFactoryFn{
 	clusterversion.Latest: buildLatestInitialValues,
 
+	clusterversion.V25_2: hardCodedInitialValues{
+		system:        v25_2_system_keys,
+		systemHash:    v25_2_system_sha256,
+		nonSystem:     v25_2_tenant_keys,
+		nonSystemHash: v25_2_tenant_sha256,
+	}.build,
+
 	clusterversion.V25_1: hardCodedInitialValues{
 		system:        v25_1_system_keys,
 		systemHash:    v25_1_system_sha256,
@@ -159,3 +166,15 @@ var v25_1_tenant_keys string
 
 //go:embed data/25_1_tenant.sha256
 var v25_1_tenant_sha256 string
+
+//go:embed data/25_2_system.keys
+var v25_2_system_keys string
+
+//go:embed data/25_2_system.sha256
+var v25_2_system_sha256 string
+
+//go:embed data/25_2_tenant.keys
+var v25_2_tenant_keys string
+
+//go:embed data/25_2_tenant.sha256
+var v25_2_tenant_sha256 string