build(deps): bump google.golang.org/grpc in /faucet-backend

Bumps [google.golang.org/grpc](https://github.com/grpc/grpc-go) from 1.61.1 to 1.79.3.
- [Release notes](https://github.com/grpc/grpc-go/releases)
- [Commits](grpc/grpc-go@v1.61.1...v1.79.3)

---
updated-dependencies:
- dependency-name: google.golang.org/grpc
  dependency-version: 1.79.3
  dependency-type: indirect
...

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

Author: dependabot[bot]

faucet-backend/go.mod

@@ -1,8 +1,6 @@
 module github.com/oasisprotocol/tools/faucet-backend
 
-go 1.22
-
-toolchain go1.22.1
+go 1.25.0
 
 require github.com/pelletier/go-toml/v2 v2.0.6
 
@@ -27,7 +25,7 @@ require (
 	github.com/btcsuite/btcd/chaincfg/chainhash v1.0.1 // indirect
 	github.com/btcsuite/btcutil v1.0.3-0.20201208143702-a53e38424cce // indirect
 	github.com/cenkalti/backoff/v4 v4.2.1 // indirect
-	github.com/cespare/xxhash/v2 v2.2.0 // indirect
+	github.com/cespare/xxhash/v2 v2.3.0 // indirect
 	github.com/cometbft/cometbft v0.0.0-00010101000000-000000000000 // indirect
 	github.com/consensys/bavard v0.1.13 // indirect
 	github.com/consensys/gnark-crypto v0.12.1 // indirect
@@ -40,9 +38,10 @@ require (
 	github.com/fatih/color v1.13.0 // indirect
 	github.com/fsnotify/fsnotify v1.6.0 // indirect
 	github.com/fxamacker/cbor/v2 v2.4.0 // indirect
+	github.com/go-jose/go-jose/v4 v4.1.3 // indirect
 	github.com/go-kit/log v0.2.1 // indirect
 	github.com/go-logfmt/logfmt v0.5.1 // indirect
-	github.com/golang/protobuf v1.5.3 // indirect
+	github.com/golang/protobuf v1.5.4 // indirect
 	github.com/golang/snappy v0.0.5-0.20220116011046-fa5810519dcb // indirect
 	github.com/hashicorp/go-hclog v1.4.0 // indirect
 	github.com/hashicorp/go-plugin v1.4.6 // indirect
@@ -87,23 +86,27 @@ require (
 	github.com/spf13/jwalterweatherman v1.1.0 // indirect
 	github.com/spf13/pflag v1.0.5 // indirect
 	github.com/spf13/viper v1.15.0 // indirect
-	github.com/stretchr/testify v1.9.0 // indirect
+	github.com/spiffe/go-spiffe/v2 v2.6.0 // indirect
+	github.com/stretchr/testify v1.10.0 // indirect
 	github.com/subosito/gotenv v1.4.2 // indirect
 	github.com/supranational/blst v0.3.11 // indirect
 	github.com/tidwall/btree v1.6.0 // indirect
 	github.com/x448/float16 v0.8.4 // indirect
 	go.uber.org/multierr v1.11.0 // indirect
 	go.uber.org/zap v1.26.0 // indirect
-	golang.org/x/crypto v0.21.0 // indirect
+	golang.org/x/crypto v0.48.0 // indirect
 	golang.org/x/exp v0.0.0-20240213143201-ec583247a57a // indirect
-	golang.org/x/net v0.21.0 // indirect
-	golang.org/x/sync v0.6.0 // indirect
-	golang.org/x/sys v0.18.0 // indirect
-	golang.org/x/text v0.14.0 // indirect
-	google.golang.org/genproto/googleapis/rpc v0.0.0-20240213162025-012b6fc9bca9 // indirect
-	google.golang.org/grpc v1.61.1 // indirect
+	golang.org/x/mod v0.34.0 // indirect
+	golang.org/x/net v0.50.0 // indirect
+	golang.org/x/sync v0.20.0 // indirect
+	golang.org/x/sys v0.42.0 // indirect
+	golang.org/x/telemetry v0.0.0-20260316223853-b6b0c46d1ccd // indirect
+	golang.org/x/text v0.34.0 // indirect
+	golang.org/x/tools v0.42.0 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20251202230838-ff82c1b0f217 // indirect
+	google.golang.org/grpc v1.79.3 // indirect
 	google.golang.org/grpc/security/advancedtls v0.0.0-20221004221323-12db695f1648 // indirect
-	google.golang.org/protobuf v1.32.0 // indirect
+	google.golang.org/protobuf v1.36.10 // indirect
 	gopkg.in/ini.v1 v1.67.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 	lukechampine.com/blake3 v1.2.1 // indirect