creates tag v1.20.0 and assigns it to relevant commit

ORT 1.18.2 Release Tag

release tag

ORT 1.19.0 Release: Cherry-Pick Round 2 (#21726)

### Description
<!-- Describe your changes. -->

PRs marked for cherry-pick & bug fixes.

### Motivation and Context
<!-- - Why is this change required? What problem does it solve?
- If it fixes an open issue, please link to the issue here. -->

ORT 1.19.0 Release Preparation

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Signed-off-by: Liqun Fu <liqfu@microsoft.com>
Co-authored-by: George Wu <jywu@microsoft.com>
Co-authored-by: liqun Fu <liqfu@microsoft.com>
Co-authored-by: Scott McKay <skottmckay@gmail.com>
Co-authored-by: Yi Zhang <zhanyi@microsoft.com>

[ORT 1.18.1 Release] Update ORT numpy dependency to >=1.21.6,<2.0 (#2…

…1141)

### Description
Updates the version of numpy required by onnxruntime to >=1.21.6,<2.0



### Motivation and Context
Numpy released version 2.0. The onnxruntime 1.18.1 release is using
numpy < 2.0, so we need to update requirement files to only install
versions between 1.21.6 and 2.0 (non-inclusive).

[ORT 1.18.0 Release] Cherry pick 3rd/Final round (#20677)

Co-authored-by: Rachel Guo <35738743+YUNQIUGUO@users.noreply.github.com>
Co-authored-by: rachguo <rachguo@rachguos-Mac-mini.local>
Co-authored-by: rachguo <rachguo@rachguos-Mini.attlocal.net>
Co-authored-by: Tianlei Wu <tlwu@microsoft.com>
Co-authored-by: George Wu <jywu@microsoft.com>
Co-authored-by: Edward Chen <18449977+edgchen1@users.noreply.github.com>
Co-authored-by: Jian Chen <cjian@microsoft.com>

Fix syntax error on Readme.rst (#20288)

### Description
<!-- Describe your changes. -->



### Motivation and Context
<!-- - Why is this change required? What problem does it solve?
- If it fixes an open issue, please link to the issue here. -->

Update 1.17.1 patch release version (#19622)

### Description
<!-- Describe your changes. -->

Need to update patch release version.


### Motivation and Context
<!-- - Why is this change required? What problem does it solve?
- If it fixes an open issue, please link to the issue here. -->

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Co-authored-by: rachguo <rachguo@rachguos-Mac-mini.local>
Co-authored-by: rachguo <rachguo@rachguos-Mini.attlocal.net>

[ORT 1.17.0 Release] Cherry-pick Final Round (#19327)

### Description
<!-- Describe your changes. -->

Cherry-pick Final Round


### Motivation and Context
<!-- - Why is this change required? What problem does it solve?
- If it fixes an open issue, please link to the issue here. -->

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Co-authored-by: Adrian Lizarraga <adlizarraga@microsoft.com>
Co-authored-by: Changming Sun <chasun@microsoft.com>
Co-authored-by: Chi Lo <54722500+chilo-ms@users.noreply.github.com>
Co-authored-by: rachguo <rachguo@rachguos-Mini.attlocal.net>
Co-authored-by: Edward Chen <18449977+edgchen1@users.noreply.github.com>
Co-authored-by: kunal-vaishnavi <115581922+kunal-vaishnavi@users.noreply.github.com>
Co-authored-by: aciddelgado <139922440+aciddelgado@users.noreply.github.com>
Co-authored-by: Yufeng Li <liyufeng1987@gmail.com>

Cherry pick SDXL demo update to 1.16.3 (#18496)

Cherry pick SDXL demo update to 1.16.3

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Co-authored-by: kunal-vaishnavi <115581922+kunal-vaishnavi@users.noreply.github.com>