Update install_et.sh to install numpy 1.21.3

[Jack-Khuu]

ET requires a specific version of ET

pipdeptree -r --packages numpy
Warning!!! Duplicate package metadata found:
"/home/jackkhuu/.conda/envs/newnew/lib/python3.10/site-packages"
  fsspec                           2024.6.1         (using 2024.9.0, "/home/jackkhuu/.conda/envs/newnew/lib/python3.10/site-packages")
NOTE: This warning isn't a failure warning.
------------------------------------------------------------------------
Warning!!! Possibly conflicting dependencies found:
* datasets==3.0.1
 - fsspec [required: >=2023.1.0,<=2024.6.1, installed: 2024.9.0]
* executorch==0.5.0a0+286799c
 - numpy [required: ==1.21.3, installed: 1.26.4]
------------------------------------------------------------------------
numpy==1.26.4
├── accelerate==0.34.2 [requires: numpy>=1.17,<3.0.0]
│   ├── lm_eval==0.4.2 [requires: accelerate>=0.21.0]
│   └── peft==0.13.0 [requires: accelerate>=0.21.0]
│       └── lm_eval==0.4.2 [requires: peft>=0.2.0]
├── datasets==3.0.1 [requires: numpy>=1.17]
│   ├── evaluate==0.4.3 [requires: datasets>=2.0.0]
│   │   ├── lm_eval==0.4.2 [requires: evaluate]
│   │   └── lm_eval==0.4.2 [requires: evaluate>=0.4.0]
│   ├── lm_eval==0.4.2 [requires: datasets>=2.16.0]
│   └── torchtune==0.0.0 [requires: datasets]
├── evaluate==0.4.3 [requires: numpy>=1.17]
│   ├── lm_eval==0.4.2 [requires: evaluate]
│   └── lm_eval==0.4.2 [requires: evaluate>=0.4.0]
├── executorch==0.5.0a0+286799c [requires: numpy==1.21.3]

[pytorch-bot]

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❌ 1 New Failure, 2 Cancelled Jobs, 1 Unrelated Failure

As of commit 40f0533 with merge base e4b36f9 ():

NEW FAILURE - The following job has failed:

• pull / test-tinystories-executorch (macos-14-xlarge) (gh)
  RuntimeError: module was compiled against NumPy C-API version 0x10 (NumPy 1.23) but the running NumPy has C-API version 0xe. Check the section C-API incompatibility at the Troubleshooting ImportError section at https://numpy.org/devdocs/user/troubleshooting-importerror.html#c-api-incompatibility for indications on how to solve this problem.

CANCELLED JOBS - The following jobs were cancelled. Please retry:

• pull / runner-et (16-core-ubuntu) (gh)
  ##[error]The operation was canceled.
• pull / test-tinystories-executorch (16-core-ubuntu) (gh)
  ##[error]The operation was canceled.

BROKEN TRUNK - The following job failed but were present on the merge base:

👉 Rebase onto the `viable/strict` branch to avoid these failures

• pull / runner-et (macos-14-xlarge) (gh) (trunk failure)
  RuntimeError: module was compiled against NumPy C-API version 0x10 (NumPy 1.23) but the running NumPy has C-API version 0xe. Check the section C-API incompatibility at the Troubleshooting ImportError section at https://numpy.org/devdocs/user/troubleshooting-importerror.html#c-api-incompatibility for indications on how to solve this problem.

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