Upgrade rust toolchain to 1.86

[TxCorpi0x]

Description

Set toolchain and minimum supported for this version according to wasmvm toolchain support

Reviewers checklist:

• Try to write more meaningful comments with clear actions to be taken.
• Nit-picking should be unblocking. Focus on core issues.

Authors checklist

• Provide a concise and meaningful description
• Review the code yourself first, before making the PR.
• Annotate your PR in places that require explanation.
• Think and try to split the PR to smaller PR if it is big.

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This change is 

[masihyeganeh]

@masihyeganeh reviewed 1 file and all commit messages, and made 1 comment.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on metalarm10, miladz68, and ysv).

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build/tools/tools.go line 127 at r1 (raw file):

	// https://releases.rs
	RustInstaller{
		Version: "1.82.0",

Have you checked if our smart contracts work with Rust 1.82.0?
I remember we had an error related to the heap memory provided to them or something like that

[ysv]

@ysv reviewed 1 file and all commit messages, and made 1 comment.
Reviewable status: all files reviewed, 1 unresolved discussion (waiting on metalarm10, miladz68, and TxCorpi0x).

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build/tools/tools.go line 127 at r1 (raw file):

Previously, masihyeganeh (Masih Yeganeh) wrote…

Have you checked if our smart contracts work with Rust 1.82.0?
I remember we had an error related to the heap memory provided to them or something like that

lets check it please