fix(cve): cve-2026-33815 - pgx memory-safety

update github.com/jackc/pgx/v5 from v5.7.6 to v5.9.0 to resolve
memory-safety vulnerability.

resolves: rhoaieng-57067

co-authored-by: claude opus 4.6 <noreply@anthropic.com>

Author: vmrh21

maas-api/go.mod

@@ -8,7 +8,7 @@ require (
 	github.com/golang-jwt/jwt/v5 v5.3.0
 	github.com/golang-migrate/migrate/v4 v4.19.1
 	github.com/google/uuid v1.6.0
-	github.com/jackc/pgx/v5 v5.7.6
+	github.com/jackc/pgx/v5 v5.9.0
 	github.com/kserve/kserve v0.0.0-20251121160314-57d83d202f36
 	github.com/lib/pq v1.10.9
 	github.com/openai/openai-go/v2 v2.3.1

maas-api/go.sum

@@ -205,8 +205,8 @@ github.com/jackc/pgpassfile v1.0.0 h1:/6Hmqy13Ss2zCq62VdNG8tM1wchn8zjSGOBJ6icpsI
 github.com/jackc/pgpassfile v1.0.0/go.mod h1:CEx0iS5ambNFdcRtxPj5JhEz+xB6uRky5eyVu/W2HEg=
 github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761 h1:iCEnooe7UlwOQYpKFhBabPMi4aNAfoODPEFNiAnClxo=
 github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761/go.mod h1:5TJZWKEWniPve33vlWYSoGYefn3gLQRzjfDlhSJ9ZKM=
-github.com/jackc/pgx/v5 v5.7.6 h1:rWQc5FwZSPX58r1OQmkuaNicxdmExaEz5A2DO2hUuTk=
-github.com/jackc/pgx/v5 v5.7.6/go.mod h1:aruU7o91Tc2q2cFp5h4uP3f6ztExVpyVv88Xl/8Vl8M=
+github.com/jackc/pgx/v5 v5.9.0 h1:T/dI+2TvmI2H8s/KH1/lXIbz1CUFk3gn5oTjr0/mBsE=
+github.com/jackc/pgx/v5 v5.9.0/go.mod h1:mal1tBGAFfLHvZzaYh77YS/eC6IX9OWbRV1QIIM0Jn4=
 github.com/jackc/puddle/v2 v2.2.2 h1:PR8nw+E/1w0GLuRFSmiioY6UooMp6KJv0/61nB7icHo=
 github.com/jackc/puddle/v2 v2.2.2/go.mod h1:vriiEXHvEE654aYKXXjOvZM39qJ0q+azkZFrfEOc3H4=
 github.com/jmespath/go-jmespath v0.4.1-0.20220621161143-b0104c826a24 h1:liMMTbpW34dhU4az1GN0pTPADwNmvoRSeoZ6PItiqnY=