[data] revert "continue grabbing task state until response is not Non…

…e" (ray-project#61066)

revert ray-project#60592, cherrypick ray-project#61064

Signed-off-by: Lonnie Liu <lonnie@anyscale.com>

[Data] Concurrency cap backpressure with tuning (Disabled) (ray-proje…

…ct#59519)

EWMA_ALPHA
Update EWMA_ALPHA from 0.2->0.1. This makes adjusting level to be more in-favor of limiting concurrency by being more sensitive to downstreaming queuing.

K_DEV
Update K_DEV from 2.0->1.0. This makes stddev to be more in-favor of limiting concurrency by being more sensitive to downstreaming queuing.

cherry-pick of ray-project#59392

Cherry pick browser request validation improvements (ray-project#59045)

Cherry pick ray-project#58553 ray-project#58648 ray-project#59042

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Signed-off-by: Richo Healey <richo@anyscale.com>
Signed-off-by: Edward Oakes <ed.nmi.oakes@gmail.com>
Co-authored-by: richo-anyscale <richo@anyscale.com>
Co-authored-by: Lonnie Liu <95255098+aslonnie@users.noreply.github.com>

change version to 2.52.1 (ray-project#59049)

for 2.52.1 release

Signed-off-by: elliot-barn <elliot.barnwell@anyscale.com>

[core] Cherry pick token authentication UX improvements (ray-project#…

…58831)

Cherry pick: ray-project#58737

Signed-off-by: sampan <sampan@anyscale.com>
Signed-off-by: Edward Oakes <ed.nmi.oakes@gmail.com>
Co-authored-by: Sampan S Nayak <sampansnayak2@gmail.com>
Co-authored-by: sampan <sampan@anyscale.com>

Fixes to tests (ray-project#58317)

lint on code format and cherrypick ray-project#58215

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Signed-off-by: Lonnie Liu <lonnie@anyscale.com>

[core][cherry-pick] RDT NIXL Limitations + Throw Exception (ray-proje…

…ct#58159)

## Description
Cherry-picking ray-project#58063 to throw an exception when trying to double send
the same ref before gc because it can trigger a NIXL error. Also adding
documentation for this.

Signed-off-by: Dhyey Shah <dhyey2019@gmail.com>
Signed-off-by: Qiaolin-Yu <liin1211@outlook.com>
Signed-off-by: Qiaolin Yu <liin1211@outlook.com>
Co-authored-by: Qiaolin Yu <liin1211@outlook.com>
Co-authored-by: Stephanie Wang <smwang@cs.washington.edu>

[cherry-pick] [core] Fix deadlock when cancelling stale requests on i…

…n-order actors (ray-project#57746) (ray-project#57768)

## Description
Cherry picking ray-project#57746

Signed-off-by: dayshah <dhyey2019@gmail.com>

[DOC-127] Cherry-pick (ray-project#54254): MVP for OSS Ray labels (ra…

…y-project#57547)

(cherry picked from commit 44a9732)

Co-authored-by: Douglas Strodtman <douglas@anyscale.com>

2.49.2 version change (ray-project#56501)

Signed-off-by: Lonnie Liu <lonnie@anyscale.com>