fix(docs): make the Lambda Layer version consistent (#3498)

* fix(docs): make the Lambda Layer version consistent

* fix: arm64 and all runtimes

* Update layer/scripts/layer-balancer/main.go

Co-authored-by: Leandro Damascena <lcdama@amazon.pt>
Signed-off-by: Ruben Fonseca <fonseka@gmail.com>

* Update layer/scripts/layer-balancer/main.go

Co-authored-by: Leandro Damascena <lcdama@amazon.pt>
Signed-off-by: Ruben Fonseca <fonseka@gmail.com>

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Signed-off-by: Ruben Fonseca <fonseka@gmail.com>
Co-authored-by: Leandro Damascena <lcdama@amazon.pt>

Author: rubenfonseca