Fixed build in master

[Razican]

It turns out that the build in master is only partially failing, while it should be failing completely. We did not detect that adding serde as a required dependency would break the build.

I have added it as mandatory, and we now control the deserialization / serialization of the output via the deser feature, which is a breaking change. This was required because we can't have a feature named as one of our dependencies if that dependency is not optional.

I also took the opportunity to upgrade all dependencies and to update the test suite.

Let me know if you are happy with these changes :)

[github-actions]

Test262 conformance changes:

Test result	master count	PR count	difference
Total	78,460	78,493	+33
Passed	19,388	19,392	+4
Ignored	15,559	15,585	+26
Failed	43,513	43,516	+3
Panics	447	447	0
Conformance	24.71	24.71	-0.01%

[codecov]

Codecov Report

Merging #977 (44c17e8) into master (5c98676) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #977   +/-   ##
=======================================
  Coverage   59.56%   59.56%           
=======================================
  Files         166      166           
  Lines       10815    10815           
=======================================
  Hits         6442     6442           
  Misses       4373     4373           

Impacted Files	Coverage Δ
boa/src/builtins/bigint/mod.rs	70.14% <ø> (ø)
boa/src/syntax/ast/constant.rs	48.00% <ø> (ø)
boa/src/syntax/ast/keyword.rs	47.42% <ø> (ø)
boa/src/syntax/ast/node/array/mod.rs	74.07% <ø> (ø)
boa/src/syntax/ast/node/await_expr/mod.rs	0.00% <ø> (ø)
boa/src/syntax/ast/node/block/mod.rs	56.66% <ø> (ø)
boa/src/syntax/ast/node/break_node/mod.rs	62.50% <ø> (ø)
boa/src/syntax/ast/node/call/mod.rs	84.21% <ø> (ø)
.../syntax/ast/node/conditional/conditional_op/mod.rs	63.63% <ø> (ø)
boa/src/syntax/ast/node/conditional/if_node/mod.rs	60.71% <ø> (ø)
... and 33 more

---

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[github-actions]

Benchmark for 44c17e8

Click to view benchmark

Test	PR Benchmark	Master Benchmark	%
Arithmetic operations (Execution)	265.1±3.14ns	N/A	N/A
Arithmetic operations (Full)	178.4±2.04µs	N/A	N/A
Array access (Execution)	6.2±0.08µs	N/A	N/A
Array access (Full)	194.4±1.90µs	N/A	N/A
Array creation (Execution)	2.2±0.02ms	N/A	N/A
Array creation (Full)	2.2±0.02ms	N/A	N/A
Array pop (Execution)	812.8±7.55µs	N/A	N/A
Array pop (Full)	1105.7±12.04µs	N/A	N/A
Boolean Object Access (Execution)	3.6±0.05µs	N/A	N/A
Boolean Object Access (Full)	186.9±3.07µs	N/A	N/A
Clean js (Execution)	544.2±7.85µs	N/A	N/A
Clean js (Full)	760.5±8.94µs	N/A	N/A
Clean js (Parser)	27.2±0.20µs	N/A	N/A
Create Realm	359.5±5.52ns	N/A	N/A
Dynamic Object Property Access (Execution)	4.2±0.05µs	N/A	N/A
Dynamic Object Property Access (Full)	188.3±1.73µs	N/A	N/A
Expression (Parser)	5.0±0.05µs	N/A	N/A
Fibonacci (Execution)	636.4±6.71µs	N/A	N/A
Fibonacci (Full)	843.2±8.96µs	N/A	N/A
For loop (Execution)	16.9±0.26µs	N/A	N/A
For loop (Full)	206.1±1.98µs	N/A	N/A
For loop (Parser)	13.2±0.18µs	N/A	N/A
Goal Symbols (Parser)	8.8±0.07µs	N/A	N/A
Hello World (Parser)	2.4±0.02µs	N/A	N/A
Long file (Parser)	612.8±5.77ns	N/A	N/A
Mini js (Execution)	491.9±5.38µs	N/A	N/A
Mini js (Full)	687.5±10.02µs	N/A	N/A
Mini js (Parser)	24.0±0.31µs	N/A	N/A
Number Object Access (Execution)	2.9±0.04µs	N/A	N/A
Number Object Access (Full)	182.9±1.89µs	N/A	N/A
Object Creation (Execution)	3.7±0.04µs	N/A	N/A
Object Creation (Full)	187.1±1.99µs	N/A	N/A
RegExp (Execution)	7.1±0.08µs	N/A	N/A
RegExp (Full)	195.2±2.00µs	N/A	N/A
RegExp Literal (Execution)	8.1±0.10µs	N/A	N/A
RegExp Literal (Full)	194.6±1.87µs	N/A	N/A
RegExp Literal Creation (Execution)	7.1±0.10µs	N/A	N/A
RegExp Literal Creation (Full)	191.4±7.98µs	N/A	N/A
Static Object Property Access (Execution)	3.9±0.03µs	N/A	N/A
Static Object Property Access (Full)	187.5±1.55µs	N/A	N/A
String Object Access (Execution)	5.4±0.08µs	N/A	N/A
String Object Access (Full)	190.8±1.59µs	N/A	N/A
String comparison (Execution)	4.9±0.06µs	N/A	N/A
String comparison (Full)	191.2±1.30µs	N/A	N/A
String concatenation (Execution)	4.0±0.05µs	N/A	N/A
String concatenation (Full)	186.2±1.69µs	N/A	N/A
String copy (Execution)	3.1±0.04µs	N/A	N/A
String copy (Full)	182.0±2.12µs	N/A	N/A
Symbols (Execution)	2.7±0.03µs	N/A	N/A
Symbols (Full)	177.4±3.48µs	N/A	N/A