chore(MeasureTheory/Function/SimpleFunc): deprecate SimpleFunc.coe_le

[JovanGerb]

This PR deprecates the duplicate MeasureTheory.SimpleFunc.coe_le of coe_le_coe that seems to have accidentally slipped in via #18707.

---

[github-actions]

PR summary dde1cfffb6

Import changes for modified files

No significant changes to the import graph

Import changes for all files

Files	Import difference

---

Declarations diff

No declarations were harmed in the making of this PR! 🐙

You can run this locally as follows

## summary with just the declaration names:
./scripts/declarations_diff.sh <optional_commit>

## more verbose report:
./scripts/declarations_diff.sh long <optional_commit>

The doc-module for script/declarations_diff.sh contains some details about this script.

---

No changes to technical debt.

You can run this locally as

./scripts/technical-debt-metrics.sh pr_summary

• The relative value is the weighted sum of the differences with weight given by the inverse of the current value of the statistic.
• The absolute value is the relative value divided by the total sum of the inverses of the current values (i.e. the weighted average of the differences).

[grunweg]

Thanks! We prefer the coe_le_coe name, right?
maintainer merge

[github-actions]

🚀 Pull request has been placed on the maintainer queue by grunweg.