Merge branch 'upstream' into concedo_experimental

# Conflicts:
#	README.md
#	docs/build.md
#	examples/infill/infill.cpp
#	examples/main/README.md
#	examples/server/README.md
#	flake.lock
#	scripts/sync-ggml.last
#	src/llama.cpp
#	tests/test-json-schema-to-grammar.cpp
#	tests/test-sampling.cpp

examples/server/tests/features/ctx_shift.feature

@@ -13,6 +13,10 @@ Feature: llama.cpp server
     And   32 as batch size
     And   2 slots
 
+    # the prompt is 301 tokens
+    # the slot context is 256/2 = 128 tokens
+    # the prompt is truncated to keep the last 109 tokens
+    # 64 tokens are generated thanks to shifting the context when it gets full
   Scenario: Inference with context shift
     And   64 server max tokens to predict
     Then  the server is starting