**Describe the unexpected behaviour**
VectorScan is cross-platform, yet ClickHouse enables it only for x86

**Additional context**
- #38171 replaced hyperscan by vectorscan which is a cross-platform fork of hyperscan. Due to wrong results on ARM (see the PR), we currently compile vectorscan only for x86. Need to check if a new version resolves the problem or continue investigation.
- Once done, we can remove the non-vectorscan fallback code in file "Functions/MultiMatchAnyImpl.h"
void addEscapedOctal(ComponentSequence *currentSeq, unichar accum,
                     const ParseMode &mode) {
    addEscaped(currentSeq, accum, mode, "Octal value is greater than \\377");
}
static
void addEscapedHex(ComponentSequence *currentSeq, unichar accum,
                   const ParseMode &mode) {
    addEscaped(currentSeq, accum, mode,
               "Hexadecimal value is greater than \\xFF");
}
#define SLASH_C_ERROR "\\c must be followed by an ASCII character"
static
u8 decodeCtrl(char raw) {
    if (raw & 0x80) {
        throw LocatedParseError(SLASH_C_ERROR);
    }
    return mytoupper(raw) ^ 0x40;
}
static