bootstrap: add 25.3 bootstrap data

Obtained by running (on release-25.3 branch):
```
./dev build sql-bootstrap-data && bin/sql-bootstrap-data
```

Epic: none

Release note: None

Author: shailendra-patel

pkg/sql/catalog/bootstrap/BUILD.bazel

@@ -12,6 +12,10 @@ go_library(
         "data/25_2_system.sha256",
         "data/25_2_tenant.keys",
         "data/25_2_tenant.sha256",
+        "data/25_3_system.keys",
+        "data/25_3_system.sha256",
+        "data/25_3_tenant.keys",
+        "data/25_3_tenant.sha256",
     ],
     importpath = "github.com/cockroachdb/cockroach/pkg/sql/catalog/bootstrap",
     visibility = ["//visibility:public"],

pkg/sql/catalog/bootstrap/data/25_3_system.keys

@@ -0,0 +1 @@
+db45f6e592a8c13e55024dbb59070fdc2f4e8bf264cb900cfbce5768e2194cb3

pkg/sql/catalog/bootstrap/data/25_3_system.sha256

@@ -0,0 +1 @@
+7df24653fa3688ec936f11a036ff12c16322114e29c08290167429828b971f7e

pkg/sql/catalog/bootstrap/data/25_3_tenant.keys

@@ -71,6 +71,13 @@ var initialValuesFactoryByKey = map[clusterversion.Key]initialValuesFactoryFn{
 		nonSystem:     v25_2_tenant_keys,
 		nonSystemHash: v25_2_tenant_sha256,
 	}.build,
+
+	clusterversion.V25_3: hardCodedInitialValues{
+		system:        v25_3_system_keys,
+		systemHash:    v25_3_system_sha256,
+		nonSystem:     v25_3_tenant_keys,
+		nonSystemHash: v25_3_tenant_sha256,
+	}.build,
 }
 
 // buildLatestInitialValues is the default initial value factory.
@@ -140,3 +147,15 @@ var v25_2_tenant_keys string
 
 //go:embed data/25_2_tenant.sha256
 var v25_2_tenant_sha256 string
+
+//go:embed data/25_3_system.keys
+var v25_3_system_keys string
+
+//go:embed data/25_3_system.sha256
+var v25_3_system_sha256 string
+
+//go:embed data/25_3_tenant.keys
+var v25_3_tenant_keys string
+
+//go:embed data/25_3_tenant.sha256
+var v25_3_tenant_sha256 string