chore(deps): downgrade go-grpc-middleware to v2.2.0 (cloudnative-pg#7002)

This avoids requiring github.com/google/cel-go v0.23.0, is incompatible
with k8s.io/apiserver v0.32.2 that is a dependency of controller-runtime
v0.20.2

Signed-off-by: Marco Nenciarini <mnencia@kcore.it>

Author: mnencia

go.mod

@@ -15,7 +15,7 @@ require (
 	github.com/evanphx/json-patch/v5 v5.9.11
 	github.com/go-logr/logr v1.4.2
 	github.com/google/shlex v0.0.0-20191202100458-e7afc7fbc510
-	github.com/grpc-ecosystem/go-grpc-middleware/v2 v2.3.0
+	github.com/grpc-ecosystem/go-grpc-middleware/v2 v2.2.0
 	github.com/jackc/pgx/v5 v5.7.2
 	github.com/jackc/puddle/v2 v2.2.2
 	github.com/kballard/go-shellquote v0.0.0-20180428030007-95032a82bc51

go.sum

@@ -83,8 +83,8 @@ github.com/gorilla/websocket v1.5.0 h1:PPwGk2jz7EePpoHN/+ClbZu8SPxiqlu12wZP/3sWm
 github.com/gorilla/websocket v1.5.0/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
 github.com/gregjones/httpcache v0.0.0-20190611155906-901d90724c79 h1:+ngKgrYPPJrOjhax5N+uePQ0Fh1Z7PheYoUI/0nzkPA=
 github.com/gregjones/httpcache v0.0.0-20190611155906-901d90724c79/go.mod h1:FecbI9+v66THATjSRHfNgh1IVFe/9kFxbXtjV0ctIMA=
-github.com/grpc-ecosystem/go-grpc-middleware/v2 v2.3.0 h1:FbSCl+KggFl+Ocym490i/EyXF4lPgLoUtcSWquBM0Rs=
-github.com/grpc-ecosystem/go-grpc-middleware/v2 v2.3.0/go.mod h1:qOchhhIlmRcqk/O9uCo/puJlyo07YINaIqdZfZG3Jkc=
+github.com/grpc-ecosystem/go-grpc-middleware/v2 v2.2.0 h1:kQ0NI7W1B3HwiN5gAYtY+XFItDPbLBwYRxAqbFTyDes=
+github.com/grpc-ecosystem/go-grpc-middleware/v2 v2.2.0/go.mod h1:zrT2dxOAjNFPRGjTUe2Xmb4q4YdUwVvQFV6xiCSf+z0=
 github.com/inconshreveable/mousetrap v1.1.0 h1:wN+x4NVGpMsO7ErUn/mUI3vEoE6Jt13X2s0bqwp9tc8=
 github.com/inconshreveable/mousetrap v1.1.0/go.mod h1:vpF70FUmC8bwa3OWnCshd2FqLfsEA9PFc4w1p2J65bw=
 github.com/jackc/pgpassfile v1.0.0 h1:/6Hmqy13Ss2zCq62VdNG8tM1wchn8zjSGOBJ6icpsIM=