[CI] Bump peft to satisfy transformers 5.18 minimum (#59932)

Signed-off-by: Harry Mellor <19981378+hmellor@users.noreply.github.com>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>

requirements/test/cpu.txt

@@ -713,7 +713,7 @@ pathvalidate==3.2.1
     # via pytablewriter
 patsy==1.0.1
     # via statsmodels
-peft==0.19.1
+peft==0.21.1
     # via -r requirements/test/cuda.in
 perceptron==0.1.4
     # via -r requirements/test/cuda.in

requirements/test/cuda.in

@@ -20,7 +20,7 @@ httpx
 librosa # required for audio tests
 vector_quantize_pytorch # required for minicpmo_26 test
 vocos # required for minicpmo_26 test
-peft>=0.19.1 # required for phi-4-mm test
+peft>=0.20.0 # required for phi-4-mm test
 pqdm
 ray[cgraph,default]>=2.56.0,<2.57 # Ray Compiled Graph, required by pipeline parallelism tests; sharded-RDT weight transfer needs Ray Direct Transport (>=2.56)
 sentence-transformers>=5.2.0 # required for embedding tests

requirements/test/cuda.txt

@@ -801,7 +801,7 @@ pathvalidate==3.2.1
     # via pytablewriter
 patsy==1.0.1
     # via statsmodels
-peft==0.19.1
+peft==0.21.1
     # via -r requirements/test/cuda.in
 perceptron==0.1.4
     # via -r requirements/test/cuda.in

requirements/test/rocm.in

@@ -19,7 +19,7 @@ httpx
 librosa # required for audio tests
 vector_quantize_pytorch # required for minicpmo_26 test
 vocos # required for minicpmo_26 test
-peft>=0.19.1 # required for phi-4-mm test
+peft>=0.20.0 # required for phi-4-mm test
 pqdm
 ray[cgraph,default]==2.55.1 # Includes worker startup getenv/setenv race fix
 sentence-transformers>=5.2.0 # required for embedding tests

requirements/test/rocm.txt

@@ -773,7 +773,7 @@ pathvalidate==3.3.1
     # via pytablewriter
 patsy==1.0.2
     # via statsmodels
-peft==0.19.1
+peft==0.21.1
     # via -r requirements/test/rocm.in
 perceptron==0.1.4
     # via -r requirements/test/rocm.in